Nutrition — Types of Diets

01

Why Diets Exist

The real reason there are so many

People eat differently for many reasons. Culture. Religion. Ethics. Allergies. Medical conditions. Personal taste. There is no single diet that wins for everyone.

The media sells you the opposite. Every year there is a new "best diet" that is better than everything before it. This is marketing. It is not science.

The truth is simple. A diet that you can follow long-term beats a perfect diet you quit in three weeks. Consistency wins every time. The goal of this chapter is to give you the facts on each approach. Then you decide what fits your life.

Core Rule

There is no universal best diet. There is only the best diet for you, given your goals, your health, and your lifestyle. Read this chapter. Then choose.

02

Vegan / Plant-Based

The most popular — and most misunderstood

What Is It?

High Risk Without Planning

A vegan diet removes all animal products. No meat, no fish, no dairy, no eggs. A plant-based diet is a broader term — it means most food comes from plants, but the strictness varies.

The number of vegans in America went from 2.6 million in 1994 to 19.8 million by 2020. More people try it every year. But a 2016 study found that 84% of vegans eventually quit.

The biggest names who tried it and went back: even Gandhi tried vegan and had to add milk back for his health. Scroll through any celebrity who publicly went vegan five years ago. Most are no longer vegan.

Why It Fails Without Careful Planning

The issue is not willpower. The issue is specific nutrients that simply do not exist in adequate amounts in plant foods. Here is what gets people:

Vitamin A

Plants contain beta-carotene, not real Vitamin A. Your body converts it at a ratio of 21:1. The more you eat, the worse that ratio gets. Most Europeans have genes that make it even harder. Real Vitamin A only comes from meat or supplements.

Vitamin D

Found only in meaningful amounts in meat and animal fat. Some mushrooms and algae contain trace amounts — nowhere near enough for daily needs.

Vitamin K2

Found in liver, eggs, hard cheese, and full-fat dairy. K2 moves calcium to your bones and away from your arteries. Vegans typically have weaker bones because of K2 deficiency.

Vitamin B12

Impossible to get from plants. Period. It is essential for brain function. If you are pregnant and vegan, you need 3x the normal dose. Supplementation is not optional — it is required.

Iron

Spinach has iron, but oxalates block 98% of absorption. Only 2% gets in. Grains and legumes contain phytic acid, which also blocks iron. Animal iron absorbs easily. Plant iron does not.

Zinc

Phytic acid in grains and legumes blocks zinc absorption. Zinc is essential for testosterone production and immune function. Vegans consistently test low.

On Soy Meat Replacements

Soy-based meat replacements contain Genistein, which has harmful effects on the male reproductive system. Processed soy also contains Soy Leghemoglobin, which caused kidney disease and anemia in rat studies. Every meat substitute is exactly that — a substitute. Substitutes come with trade-offs.

Children & Pregnancy

The first food a human ever eats is breast milk. It is made from animal protein, animal fat, hormones, antibodies, living cells, and over 1,000 proteins. No plant-based substitute replicates this.

Soy milk — the most common vegan alternative for infants — contains Genistein, which disrupts the male hormonal system. This is not a fringe concern. This is documented biochemistry.

If you choose veganism, supplementation is mandatory, not optional. Vitamin B12, D3, K2, iron, zinc, and DHA at minimum. Consult a doctor. Get blood work done regularly.

03

Vegetarian / Flexitarian

The spectrum between full plant and full animal

This is not one diet — it is a spectrum. Here is how it breaks down:

Type	What's Included	What's Excluded
Flexitarian	Eggs, dairy, mostly plants — some meat occasionally	Nothing fully, just reduced meat
Pescatarian	Eggs, dairy, fish and seafood	Meat and poultry
Vegetarian	Eggs, dairy	Meat, poultry, fish, seafood
Vegan	Plants only	All animal products

Flexitarian and pescatarian options solve most of the nutrient deficiency problems that plague strict veganism. Eggs cover B12, K2, and vitamin D. Fish covers DHA, omega-3, and zinc. Dairy adds calcium and K2.

The further along the spectrum toward vegan you go, the more careful you need to be with supplementation. The healthiest plant-based eaters are not fully vegan — they include eggs, fish, or dairy as nutritional anchors.

Key Insight

Plant-heavy diets are genuinely healthy. The problem is not plants. The problem is complete removal of animal products without compensating for the nutrients lost. Keep eggs and fish and this diet becomes one of the most balanced approaches available.

04

Mediterranean

The most studied diet in the world

What Is It?

Well Balanced

The traditional eating pattern of Mediterranean countries from the 1950s–60s. Olive oil at the center. Lots of vegetables, fruit, legumes, nuts, and whole grains. Moderate fish. Less red meat. Small amounts of dairy and wine.

Note: what people eat in Mediterranean countries today is much closer to a typical western diet. The "Mediterranean diet" refers to the traditional pattern — not current habits there.

Works Well For

Reducing heart disease risk
Lowering blood pressure
Improving cholesterol and blood glucose
Long-term sustainability — you don't feel restricted
Anti-inflammatory eating patterns
Brain health and longevity

Limitations

Not designed for rapid fat loss
Still contains significant carbohydrates
Olive oil quality matters — most "extra virgin" olive oil is fake
Wine intake is often overstated as beneficial

Olive Oil (daily) Vegetables Legumes Fish Whole Grains Nuts Processed Meat Refined Sugar Ultra-Processed Food

20+ years of research backs this diet for heart health. It works. It is flexible. It is sustainable. For most people who want long-term health without extreme restriction, this is one of the best options available.

Cultural Diet vs Biological Optimum

The Mediterranean diet represents a cultural eating pattern — what people in that region historically ate and survived on. It is a solid, sustainable choice. But Section 13 of this chapter goes deeper: evolutionary biology suggests that carbohydrate intake should match your latitude, season, and sun exposure. For people living in temperate or northern climates with limited sunlight, lower carb intake may be more biologically optimal — even if the Mediterranean pattern remains excellent for long-term adherence and heart health.

05

DASH

Dietary Approaches to Stop Hypertension

What Is It?

Medical Backing

DASH was designed by the National Institutes of Health specifically to lower blood pressure without medication. It has been ranked the #1 heart-healthy diet for many consecutive years. It targets potassium, calcium, and magnesium — the minerals that regulate blood pressure naturally.

−11

mmHg systolic BP reduction in 2 weeks

10%

Reduced 10-year cardiovascular risk

2300

mg sodium max per day (standard)

#1

Ranked best heart-healthy diet 2025

The focus is on whole foods rich in potassium (fruits, vegetables), magnesium (nuts, leafy greens), and calcium (dairy, leafy greens). Sodium is reduced. Red meat, processed meat, and sugar are limited.

Vegetables Fruits Whole Grains Lean Protein Low-Fat Dairy Nuts & Seeds High-Sodium Foods Red Meat Sugary Drinks Processed Food

Works Well For

People with high blood pressure
Reducing heart disease and stroke risk
Improving cholesterol
Reducing diabetes risk
Sustainable long-term — no food groups banned
Easy to follow — regular grocery store foods

Limitations

Primarily designed for blood pressure — not fat loss
The very low-sodium version may actually increase heart risk in healthy people
Still carbohydrate-heavy — not ideal for insulin resistance
Low-fat dairy recommendation is debated

Bottom Line

DASH is a medically validated, well-rounded eating pattern. If you have high blood pressure or a family history of heart disease, this diet deserves serious attention. For healthy people without hypertension, Mediterranean is a more flexible alternative with similar benefits.

06

Paleo

Eat like your ancestors — sort of

What Is It?

Moderate

The idea: eat what paleolithic humans ate. No grains, no legumes, no dairy, no processed food. The assumption is that our bodies evolved on animal foods, fruits, vegetables, nuts, and seeds — before agriculture changed everything.

One important note: we do not actually know exactly what paleolithic humans ate. It varied hugely by geography and era. Some populations ate almost entirely animal food. Others relied heavily on plants. "Paleo" is a concept, not a historically precise menu.

Lean Meat Fish & Seafood Eggs Vegetables Fruit Nuts Grains Legumes Dairy Processed Food Sugar

Works Well For

Eliminating processed food automatically
High protein intake naturally
Reducing inflammation for sensitive individuals
Weight loss through satiety
Autoimmune conditions in some cases

Limitations

Eliminating dairy removes an excellent calcium/K2 source
Eliminating legumes removes affordable protein
Can be expensive
Long-term restriction of entire food groups is hard to sustain

The core logic is sound: remove processed food, eat real food, prioritize protein. The specific restrictions (no legumes, no dairy) are more debatable. Many people do a modified paleo that keeps quality dairy — and that works well.

07

Carnivore

Animal foods only — extreme, but not pointless

What Is It?

Advanced

Zero plant foods. Meat, fish, eggs, and some dairy only. It is the most extreme elimination diet possible. For most people, it is unnecessary. For people with specific autoimmune conditions or severe food sensitivities, it can work as a reset.

Animal foods — especially organ meats and shellfish — are the most nutrient-dense foods on earth. Gram for gram, beef liver beats any vegetable for vitamin and mineral content.

Organ meats like liver contain Vitamins A, D, K2, B12, iron, zinc, copper, and CoQ10 — all in bioavailable form. No supplement stack comes close.

Potential Benefits

Eliminates all plant toxins (lectins, oxalates, phytic acid)
Very high satiety — hard to overeat
Extremely high protein
Can reverse autoimmune conditions for some people
Simplifies food decision-making completely

Real Risks

Low magnesium — requires supplementation
Low Vitamin C and E — must be addressed
Eliminates genuinely healthy plant foods
Very hard to sustain socially long-term
Insufficient long-term safety data

Who It's For

People with severe gut issues, autoimmune conditions, or extreme food sensitivities who have tried everything else. It is not a general recommendation. It is a therapeutic tool used for a specific reason, ideally with medical supervision.

08

Ketogenic

Shift your metabolism entirely

What Is It?

Powerful For Fat Loss

Keto flips your body's fuel source from glucose to fat. You eat 70% fat, 25% protein, and only 5% carbs. When carbs drop this low, your liver produces ketones — your body's alternative fuel. You enter ketosis.

This is not a high-protein diet. It is a high-fat diet with moderate protein. Most people get this wrong.

Fat 70%

Protein 25%

Carbs 5%

FAT 70%

PROTEIN 25%

5%

You can enter ketosis in 2 days with a complete fast, or in about a week eating zero carbs. After 3 days in ketosis, your body becomes a fat-burning machine. Stored body fat becomes your primary fuel source.

2

Days to ketosis via fasting

7

Days to ketosis eating zero-carb

20–40g

Max carbs per day on keto

Beef, Pork, Lamb Eggs Fatty Fish Cheese & Butter Avocado Leafy Greens Nuts & Seeds Bread & Pasta Rice & Grains Sugar Most Fruit Legumes Alcohol

10 Keto Myths — Busted

✗

Carbs are essential for survival. False. There is no such thing as an essential carbohydrate. Your liver produces all the glucose your brain needs from protein and fat. Inuit people lived for centuries on near-zero carbs with no health problems.

✗

Keto will destroy your kidneys from high protein. False. Keto is a high-fat diet, not a high-protein diet. High protein causes no kidney damage in healthy people — this has been repeatedly studied.

✗

Ketosis is dangerous — it's the same as ketoacidosis. These are two completely different things. Ketoacidosis is a medical emergency in uncontrolled Type 1 diabetes. Nutritional ketosis is a normal metabolic state.

✗

Keto will cause bone loss. False. Low protein causes bone loss — not keto. Keto is a moderate protein diet, though some people stay in ketosis even with protein at 40% of calories and fat at 50% — it depends on the individual. What matters is that adequate protein combined with Vitamin D and calcium actively protects bones. Multiple studies confirm this.

✗

Keto causes muscle loss. The opposite is true. A MIT/Harvard study showed that keto preserved more muscle than a high-carb diet at the same calories. Ketosis increases leucine in the blood — an amino acid that directly signals muscle building.

✗

Saturated fat and cholesterol cause heart disease. Not supported by evidence. A 2010 meta-analysis found no connection between saturated fat and heart disease. Johns Hopkins confirmed that low-carb high-fat diets do not harm cardiovascular health.

✗

You will be Vitamin C deficient. When you eat fewer carbs, your Vitamin C requirement drops — glucose and Vitamin C compete for the same pathways. Paprika, kale, and broccoli cover your needs on keto. Meat also contains Vitamin C.

✗

The weight loss is just water weight. The first week, yes — glycogen releases water. After that, fat is the primary fuel. Both the keto and carb group in the MIT/Harvard study lost the same amount of water. Keto continued burning fat while the carb group did not.

✗

Salt is bad — you must reduce it on keto. On keto, your kidneys excrete more sodium. You need to increase salt intake to compensate — at least 5g per day. Multiple studies show low sodium increases triglycerides and raises heart risk.

✗

Keto has no fiber — bad for your gut. Keto encourages eating lots of leafy, fibrous vegetables — spinach, kale, broccoli, cabbage. These contain more fiber than the typical Western diet. The fiber claim is aimed at grain-heavy eating, not keto.

Keto Flu Warning

During the first 1–2 weeks you may experience headaches, nausea, fatigue, and irritability. This is not your body failing — it is your body adapting. Electrolytes solve most of this. Drink bone broth. Add salt. Supplement magnesium and potassium. It passes.

09

Low-Fat

The 1990s classic — not completely wrong

What Is It?

Context Dependent

Fat intake is capped at 20–30% of total calories. Based on a 2,000 calorie diet, that is roughly 45–66 grams of fat per day. Because fat is eliminated, carbohydrates naturally go up. This diet dominated nutritional advice for 30 years.

It works for weight loss if you stick to it. Multiple randomized trials show similar weight loss to low-carb. The difference is adherence — most people find low-fat harder to sustain because fat is satiating.

Critical Problem: Fat-Soluble Vitamins

Vitamins A, D, E, and K are fat-soluble. They require dietary fat to be absorbed. A study found that eating Vitamin D with a fat-containing meal increased absorption by 32% compared to a no-fat meal. Go too low on fat and you absorb far less of these critical vitamins — even if you eat enough of them.

Low fat — yes. No fat — never. The rule is reduce fat, not eliminate it. Some fat is essential at every meal for basic absorption of key vitamins.

Lean Chicken & Fish Vegetables Fruit Legumes Whole Grains Fatty Cuts of Meat Oils & Butter Full-Fat Dairy Nuts (in large amounts)

10

Gluten-Free

Medical necessity or lifestyle choice?

What Is It?

Condition-Specific

Gluten is a group of proteins found in wheat, barley, and rye. Specifically gliadin and glutenin in wheat. A gluten-free diet removes all of these grains.

For people with celiac disease — an autoimmune condition where gluten triggers immune damage to the small intestine — this is not a choice. It is a medical requirement. Eating gluten with celiac can cause serious intestinal damage.

Beyond celiac, some people experience non-celiac gluten sensitivity. Symptoms: bloating, fatigue, brain fog, joint pain after eating gluten-containing foods. No intestinal damage occurs, but the symptoms are real.

Who Needs It

Celiac disease (estimated 1% of population). Hashimoto's thyroiditis — some patients report symptom reduction. Non-celiac gluten sensitivity.

Who Doesn't Need It

People without a sensitivity or diagnosis. Gluten-free processed foods are often higher in sugar and calories than their regular equivalents. "Gluten-free" is not automatically healthy.

Wheat (all forms) Barley Rye Most Bread & Pasta Rice Potatoes Quinoa Oats (if certified GF) All Meat, Fish, Eggs All Vegetables & Fruit

11

Intermittent Fasting

When you eat matters as much as what you eat

What Is It?

Highly Effective

Intermittent fasting is not about what you eat — it is about when. You restrict eating to a specific window and fast for the rest. It works because fasting lowers insulin, depletes glycogen, and forces the body to access stored fat for fuel.

Protocol	Eating Window	Fasting Window	Best For
16:8	8 hours	16 hours	Daily maintenance, most common starting point
18:6	6 hours	18 hours	Accelerated fat loss, more metabolic benefit
20:4 (Warrior)	4 hours	20 hours	Experienced fasters, aggressive cutting
OMAD	1 meal	23 hours	Advanced, simplicity-focused
5:2	Normal 5 days	500 kcal on 2 days	Flexible schedule, beginners

Deep Dive

Intermittent fasting and fasting protocols are covered in full in the Fasting chapter. This section is an introduction. If IF interests you, read that chapter for the complete picture — including fat adaptation, hormonal effects, and how to break a fast correctly.

12

Volume Eating

Eat more food. Consume fewer calories.

What Is It?

Great For Beginners

Volume eating is built on one principle: your stomach responds to volume, not calories. If you fill your stomach with food that is low in caloric density, you feel full on fewer calories.

Calorie density = calories per gram of food. A gram of oil has 9 calories. A gram of cucumber has 0.15 calories. You can eat a massive bowl of vegetables and a small handful of nuts for the same calorie count — but the vegetables fill your stomach far more.

15

kcal per 100g cucumber (95% water)

23

kcal per 100g spinach

884

kcal per 100g olive oil

576

kcal per 100g almonds

Why It Works

No calorie counting required — just fill your plate with the right foods
High fiber from vegetables reduces hunger hormone ghrelin
Naturally nutrient-dense — most high-volume foods are vegetables
No foods are "banned" — you manage portions of dense foods
Easier to stay in a caloric deficit without feeling deprived
Works as an add-on strategy with keto, paleo, or any other diet

Limitations

Healthy fats like nuts and avocado get limited — they are calorie-dense
Risk of eating too few calories if taken too far
Processed "low-calorie" foods can sneak in without being nutritious

Cucumbers Leafy Greens Broccoli & Cauliflower Berries Zucchini Egg Whites Broth-Based Soups Lean Fish Oils & Butter (large amounts) Nuts (large amounts) Cheese Dried Fruit

Best Use Case

Volume eating is not a complete diet — it is a strategy. Use it to control hunger during any caloric deficit. Build every meal with a high-volume base (vegetables, broth, salad) before adding calorie-dense protein and fat sources. This alone can cut daily intake by 300–500 calories without feeling hungry.

Volume eating is almost always paired with low fat intake and adequate protein. Low fat keeps calorie density down. Protein keeps muscle, kills hunger, and prevents the energy crashes that come from pure carb-heavy volume meals. Without protein as an anchor, volume eating just becomes eating a lot of vegetables — which fills you temporarily but does not build or maintain anything.

13

High vs Low Carb

How much carbohydrate you actually need depends on where you live

Carbs Are Not Evil. Context Is Everything.

The debate between high-carb and low-carb is not about which side is right. Both sides are right — in the right context. The real question is: what context are you in?

Carbohydrates and fats are the two primary fuels for your mitochondria. They are not equal. They behave differently in your body depending on your environment, activity level, sunlight exposure, and genetics.

Why Carbs Work

Use less oxygen per ATP — faster energy for high-intensity work
Store water in muscle — better hydration and fullness
Spike insulin — helps sodium retention and hydration
Support T4→T3 thyroid conversion — keeps metabolism active
Provide micronutrients — Vitamin C, carotenoids, polyphenols
Produce CO2 — may enhance oxygen delivery via Bohr effect

Why Carbs Cause Problems

Produce less metabolic water than fat — worse for mitochondria
Contain higher deuterium — slows mitochondrial function
Cause glycation — sugar binds to proteins and accelerates aging
Excessive insulin spikes — harmful in sedentary, low-sunlight contexts
Lack fat-soluble vitamins (A, D, E, K2) — except raw milk
Upregulate Randle cycle — blocks fat burning when mixed with high fat

Where You Live Determines How Many Carbs You Need

This is the part most nutrition advice ignores. Humans evolved in different climates. Carbohydrate availability varied dramatically by latitude and season. Your body expects the amount of carbs that matches your ancestral environment — not a one-size-fits-all number from a study done on sedentary office workers.

Sunlight changes everything. Infrared light reduces blood glucose spikes, enhances mitochondrial function, and produces deuterium-depleted metabolic water — which directly counters the downsides of carbohydrate consumption. In a high-sunlight environment, your body can handle more carbs. In a low-sunlight environment, the same intake causes more damage.

Climate Zone	Latitude	Ancestral Carbs (g/day)	Recommended Range
Tropical	0–20°	100–175g	50–150g
Subtropical	20–30°	75–150g	25–125g
Mediterranean / Temperate	30–50°	25–125g	10–100g
Arctic	60°+	~10g	10–15g

Find Your Zone

Find your latitude on the table above. That is your baseline range. Lower your intake in winter — less sun means more glycation risk from the same carb load. Raise it in summer — more sun, more activity, more carb tolerance. This is not low-carb dogma. It is evolutionary biology matched to your geography.

Eat What Grows Near You, When It Grows

Humans evolved eating local, seasonal food. Importing tropical fruit to eat in January in a cold climate is not neutral. The sweetness of carbohydrates signals seasonal information to your body via the VIP receptor — influencing your circannual rhythms (your body's built-in yearly cycle).

Eating tropical fruit in the middle of winter in a cold climate sends the wrong seasonal signal. Your body thinks it is summer. Insulin, leptin, and thyroid function all respond accordingly — and none of it matches the actual environment you are in.

Best Carb Sources (Ranked)

Raw milk — 11g per cup, full nutrient profile, no anti-nutrients
Local seasonal fruit — strawberries, apples, pears, berries
Starchy tubers — potatoes, sweet potatoes (cook properly)
Local honey — seasonal, raw, unpasteurized only
Root vegetables — carrots, parsnips, beets

Carb Sources To Minimize

Imported tropical fruit eaten out of season
Refined grains — bread, pasta, white rice at high volume
Fruit juice — all sugar, no fiber, no satiety
Processed carbs — cereals, crackers, energy bars
Sugar-sweetened drinks — liquid carbs hit hardest

Going Low-Carb: How To Do It Right

Low-carb periods historically coincided with cold weather. Cold exposure activates metabolic pathways that complement low-carb states — it activates leptin signaling, promotes fat burning, and compensates for the T3 thyroid drop that happens on strict low-carb.

Try to pair low-carb with these practices:

Low-Carb Essentials

Add cold exposure — cold showers, outdoor walks in cool weather
Eat 1–2 large high-protein meals per day — maintains insulin spikes
Replace carbs with enough fat — 1g protein per lb bodyweight, rest from fat
Add salt generously — low-carb causes sodium loss
Add psyllium husk — retains water and supports digestion during the transition
Get sunlight when possible — even 20 minutes outdoors matters

Low-Carb Mistakes

Not eating enough fat — low carb without high fat = low energy
Ignoring electrolytes — sodium, magnesium, and potassium all drop
Staying low-carb through summer — increase carbs when sun is high
Eating low-carb processed products — bars, shakes, "keto" snacks

Genetics Play a Role — But Environment Wins

Individual Factor

Your amylase gene copy number determines how well you digest starch. More copies = better starch digestion = more tolerance for carbs. Some people carry PPARG mutations that affect insulin sensitivity. APOE4 carriers may do better on lower-fat, moderate-carb approaches.

But genetics set the range — environment determines where you land within it. The same gene expression responds to sunlight, cold, activity level, and food quality.

If you have tried both approaches and one clearly works better — more energy, better body composition, cleaner bloodwork — that is your individual signal. Your body is telling you something. Listen to it.

14

High Fat + High Carb

The modern combination that is breaking human metabolism — by design

The Randle Cycle — Why This Combination Is Uniquely Destructive

Metabolic Trap

Your body can burn fat or burn carbs. It cannot do both efficiently at the same time — especially in a caloric surplus. In a caloric deficit, the body can technically use both fuels, but the process is inefficient and still stresses the same metabolic pathways. It is not a healthy way to eat long-term — it is just less damaging when you are eating less overall. This is called the Randle cycle — a biological switching mechanism that determines which fuel gets burned and which gets stored.

When you eat high carbs, insulin rises. Insulin tells your cells to burn glucose and lock fat inside your fat cells. Fat cannot leave while insulin is elevated. When you eat high fat with high carbs simultaneously, the fat has nowhere to go. It circulates in the blood, gets packaged into triglycerides, and ends up stored.

What Happens Inside Your Body

STEP 1

You eat high fat + high carbs together

→

STEP 2

Insulin spikes — glucose gets priority for burning

→

STEP 3

Dietary fat gets stored — not burned

STEP 4

Blood sugar crashes — cravings spike again within 1–2 hours

→

RESULT

More fat stored every cycle. More hunger. Faster weight gain.

This cycle repeats 3–6 times per day for most people eating a modern diet. Each repetition stores more fat, damages more blood vessels, and deepens insulin resistance. Over months and years, it drives obesity, Type 2 diabetes, and cardiovascular disease — not because of fat or carbs alone, but because of the combination.

Exercise Helps — But It Does Not Fix This

Exercise can reverse some of the damage. Weight gain accumulated over years can come off. Insulin sensitivity improves with training. Cardiovascular fitness compensates for some metabolic stress. This is real and worth doing.

But here is what exercise cannot fully undo: you can be active, look reasonably fit, and still have Type 2 diabetes. You can train four times a week and still carry a blood profile — triglycerides, LDL particle size, inflammatory markers, insulin levels — that puts you at serious risk. Chronic exposure to a high fat + high carb diet damages your organs, blood vessels, and metabolic machinery at a rate that exercise only partially offsets.

This is why we eat well — not just for how we look. For how our organs work. For how our blood looks. For how we feel at 50, 60, and 70. The body keeps score whether you are watching it or not.

Why This Diet Makes You Sleepy, Fat, and Addicted

Why You Feel Sleepy

▸Massive insulin spike from refined carbs triggers tryptophan uptake in the brain — which converts to serotonin, then melatonin
▸Digesting large amounts of fat and refined carbs together demands enormous blood flow to the gut — blood redirects away from the brain
▸The subsequent blood sugar crash 60–90 minutes later signals the brain that energy is low — triggering fatigue to reduce activity and conserve fuel
▸The fat stored in this state is never burned — the next meal triggers another cycle before fat oxidation can begin

Why You Get Addicted

▸Fat + sugar combinations trigger dopamine release at similar levels to cocaine — the brain tags these foods as high-priority rewards
▸Neither fat alone nor sugar alone produces the same dopamine hit — the combination is what drives compulsive eating
▸Blood sugar crashes increase cortisol and adrenaline — which drive cravings for the same high-sugar, high-fat foods that caused the crash
▸Food engineers test thousands of combinations to find the "bliss point" — the exact ratio of fat, sugar, and salt that maximises repeat consumption

High Fructose Corn Syrup — The Hunger That Never Stops

Engineered Hunger

Normal sugar (sucrose) triggers insulin, which triggers leptin. Leptin tells your brain you are full. The hunger signal turns off. This is how a healthy satiety loop works.

High fructose corn syrup (HFCS) breaks this loop entirely. Fructose is processed almost exclusively in the liver — it does not trigger the same insulin response as glucose. Without an insulin spike, leptin does not rise. Your brain never receives the "full" signal.

You Can Drink 800 Calories Of Soda And Still Feel Hungry. This Is Why.

Normal Sugar (Glucose)

Eaten → insulin spikes → leptin rises → brain says "stop eating" → hunger off ✓

High Fructose Corn Syrup

Eaten → liver overloaded → no insulin spike → no leptin → brain never told you're full → keep eating ✗

The liver converts excess fructose directly into fat (de novo lipogenesis). This fat accumulates around organs first — visceral fat — which is the most dangerous kind. It drives insulin resistance, inflammation, and non-alcoholic fatty liver disease independently of total calorie intake.

HFCS is in almost every processed food with a long shelf life. Bread, sauces, yogurt, breakfast cereals, sports drinks, "healthy" granola bars. It is cheap, extends shelf life, and keeps you buying more. That is not a coincidence.

This Is Not An Accident

By Design

The cheapest food to produce is refined carbohydrates and industrial seed oils. Wheat, corn, and soy are heavily subsidised crops. Processing them into shelf-stable products costs almost nothing. Combining bad fats with bad sugars creates a product that is:

CHEAP

Subsidised crops. Industrial processing. Massive margins.

ADDICTIVE

Engineered bliss point. Dopamine response. Repeat purchase guaranteed.

SHELF STABLE

Lasts years. Low spoilage. Easy global distribution.

Food companies are not in the health business. They are in the repeat-purchase business. A food that fills you up and keeps you healthy reduces the number of times you buy. A food that leaves you hungry 90 minutes later is a better business model.

This is the direct cause of three modern epidemics:

01

Children's Obesity Crisis

Children's food is the most engineered category. Cereals, snack bars, flavoured yogurts, juice boxes — all designed for maximum palatability with HFCS and industrial seed oils. A child eating processed food has broken hunger signals before age 10. Their leptin system is dysregulated before their metabolism is fully formed.

02

Heart Attacks in Young People

Each Randle cycle deposits oxidised LDL into arterial walls. HFCS drives visceral fat and systemic inflammation. Industrial seed oils (linoleic acid in sunflower, soybean, corn oil) are highly unstable — they oxidise in the bloodstream and form the plaques that rupture and cause heart attacks. Decades of this combination, starting in childhood, is why cardiovascular events are appearing in people under 40.

03

Sudden Global Weight Gain

The global obesity crisis began in the 1980s — the same decade ultra-processed food scaled globally, HFCS replaced sugar in most products, and dietary guidelines promoted low-fat (which meant high-refined-carb) eating. Countries that adopted Western processed food saw obesity rates follow within 10–15 years. Traditional diets — even high-carb or high-fat ones — do not produce this outcome. The combination does.

The Rule

If a food contains both refined carbohydrates and added fats — in a package with a long shelf life — it was designed to keep you eating, not to nourish you. No single ingredient is the problem. The engineered combination is.

15

Natural Toxins

Plants defend themselves — and you're the predator

Plants cannot run from predators. So they evolved chemical weapons. These compounds — lectins, oxalates, phytic acid — are not poison in small doses for most people. But in large quantities, especially on plant-heavy diets, they cause real problems.

This is not anti-plant propaganda. It is biology. Understanding these compounds helps you prepare and combine food smarter.

Lectins

Large sticky proteins that bind to carbohydrates in your gut lining, causing inflammation and damaging tight junctions in the intestinal wall — leaky gut.

One specific lectin — wheat germ agglutinin (WGA) — mimics insulin and binds to insulin receptors on your cells. This blocks real insulin, pushes more sugar into fat cells, and accelerates fat storage. Research suggests lectin-heavy diets can increase fat accumulation by up to 5x the normal rate.

Destroyed by soaking (12+ hours) and boiling at high heat for 10+ minutes. Canned beans are already processed and safe. Raw beans are not.

High Lectin Foods

Wheat Corn Rice Oats Soy Kidney Beans Tomatoes Peppers Eggplant Peanuts Chia Seeds

Oxalates

Oxalic acid binds to minerals — especially calcium — and prevents their absorption. In high amounts, it forms calcium oxalate crystals that lodge in kidneys, causing kidney stones.

Spinach is often praised as a great iron source. True — but oxalates block 98% of spinach's iron from being absorbed. You effectively get 2% of the iron listed on the label.

Cooking reduces oxalates by 30–87% depending on the vegetable. Boiling spinach and draining the water removes significant oxalate load.

High Oxalate Foods

Spinach (755mg/100g) Beets (152mg/cup) Almonds (122mg/oz) Tofu (235mg/85g) Raspberries Potatoes Dates Navy Beans

Phytic Acid

Found in all seeds, grains, legumes, and nuts. Phytic acid (phytate) binds to zinc, iron, calcium, and magnesium in your gut and prevents their absorption during that meal.

This affects one meal at a time — not your entire day. A high-phytate meal will block mineral absorption from that meal specifically. But if most of your meals are high-phytate (common on vegan and vegetarian diets), deficiency builds over time.

Soaking, fermenting, or sprouting significantly reduces phytic acid. Sourdough bread has far less phytic acid than standard whole-grain bread because fermentation breaks it down.

Blocks These Minerals

Zinc (testosterone) Iron (oxygen transport) Calcium (bones) Magnesium (energy + muscle)

How To Reduce Toxin Load

You do not need to eliminate plant foods. You need to prepare them correctly and balance them with animal foods that carry bioavailable nutrients.

Reduction Methods

Soak legumes 12+ hours before cooking
Boil kidney beans hard for 10+ minutes
Cook vegetables — reduces oxalates by up to 87%
Choose sourdough over regular bread
Sprout grains and seeds before eating
Ferment foods (kimchi, sauerkraut, yogurt)
Peel potatoes — most solanine is in the skin
Discard discolored, green, or sprouting produce

Who Needs To Be Most Careful

Vegans and vegetarians — highest exposure with no animal buffer
People prone to kidney stones
Anyone with gut inflammation or leaky gut
People with autoimmune conditions
Anyone who eats large amounts of raw grains or legumes

16

The Best Diet For You

There is no universal answer. Here is how to find yours.

The Best Diet Is The One You Keep

Every diet in this chapter works for someone. None of them work for everyone. Before you pick a diet because a celebrity used it or because it's trending — consider your actual life.

A perfect diet you quit in six weeks is worth nothing. A "good enough" diet you maintain for years changes your body.

01

Choose foods you actually enjoy. An eating plan that feels like punishment will not last. If you hate everything on the menu, it is the wrong diet.

02

Choose whole over processed. Always. Every diet that works has this in common. Less processing means more nutrients and fewer toxins.

03

Match your lifestyle. Travel constantly? Six small meals a day will not work. Train hard? You need adequate carbs or fat for fuel. The diet must fit your schedule.

04

Prioritize satiety. A diet that leaves you constantly hungry will fail. Protein and fiber are your best tools for staying full on fewer calories.

05

Protect your micronutrients. Every diet has blind spots. Identify which nutrients your approach lacks and either eat them or supplement them. No exceptions.

06

Track how you feel. Get blood work done before and 3 months into any new diet. Energy, sleep, gym performance, and lab markers do not lie. Your body tells the truth.

We have now covered every major diet that exists. Each one has merit. Each one has limits. The truth is that the most effective approach is rarely a single diet followed rigidly — it is a combination.

My personal approach combines elements from several of these chapters. It is not one diet. It is a system built from what actually works — tested on my own body across multiple cycles of gaining and losing significant weight.

Coming Up

In the chapter −10 kg / 22 lbs in 30 Days we go deep on my personal diet — how it combines fasting, fat adaptation, protein timing, and caloric structure into the simplest system possible. That is where results happen fastest.

Quick Reference — All Diets At A Glance

Diet	Best For	Biggest Risk	Difficulty
Vegan	Ethics, environment	Multiple nutrient deficiencies without supplementation	High
Vegetarian / Flexitarian	Balanced health with reduced meat	B12, iron if no fish or eggs	Medium
Mediterranean	Long-term heart health, longevity	Slow fat loss	Low
DASH	High blood pressure, heart disease prevention	Too low sodium has risks too	Low
Paleo	Eliminating processed food, inflammation	Expensive, dairy and legume elimination	Medium
Carnivore	Autoimmune reset, severe gut issues	Low magnesium, Vitamin C and E	High
Keto	Fat loss, blood sugar control, Type 2 diabetes	Keto flu adaptation period, social difficulty	High
Low-Fat	Calorie reduction preference	Fat-soluble vitamin malabsorption if too low	Medium
Gluten-Free	Celiac disease, gluten sensitivity	Processed GF replacements are often worse	Medium
Intermittent Fasting	Fat loss, insulin sensitivity, simplicity	Overeating in eating window	Low–Medium
Volume Eating	Hunger control during caloric deficit	Nutrient-poor if only vegetables, no protein focus	Low
High vs Low Carb	Matching fuel to your latitude, season, and lifestyle	Wrong amount for your climate causes glycation or low energy	Medium
High Fat + High Carb (Modern)	None — engineered for profit, not health	Obesity, insulin resistance, heart disease, addiction	Unavoidable (by design)

Types ofDiets

Why Diets Exist

Vegan / Plant-Based

Vegetarian / Flexitarian

Mediterranean

DASH

Paleo

Carnivore

Ketogenic

Low-Fat

Gluten-Free

Intermittent Fasting

Volume Eating

High vs Low Carb

High Fat + High Carb

Natural Toxins

The Best Diet For You

The Best Diet Is The One You Keep

Types of
Diets