Overview
What this book is about
This booklet is a condensed, practical guide to Healthy Keto® combined with intermittent fasting (IF), distilled from Dr. Berg's years of clinical work and a 9,000-person survey identifying the most common sticking points. It is not a theoretical overview — it is a reference manual for implementation: what to eat, what to avoid, how to get into ketosis, how to structure fasting windows, how to troubleshoot side effects, and how to maintain consistency long-term.
Berg's core argument is that the body has two fuel systems — glucose and fat/ketones — and that the modern diet keeps people locked in glucose-burning mode, causing chronic insulin elevation, which is the root of obesity, metabolic disease, brain fog, and most chronic illness. The fix is to switch primary fuel to fat by cutting carbs below 50 g/day and eating less frequently. He distinguishes "dirty keto" (hitting macros with low-quality food) from "Healthy Keto®" (nutrient-dense, organic, grass-fed, wild-caught) and argues the quality distinction is what determines long-term outcomes.
Intermittent fasting is presented not merely as a weight-loss tool but as a powerful health protocol in its own right — triggering autophagy, increasing growth hormone, rebuilding the immune system, regenerating brain cells, and lowering inflammation. Berg recommends beginning with 3 meals/no snacks, transitioning to a 16–20 hour fasting window (2 meals), and eventually trying OMAD (one meal a day) for maximum cognitive and metabolic benefit.
The booklet includes comprehensive food lists, three weeks of meal plans, keto restaurant guides for major US chains, troubleshooting for 20+ side effects, rules for both keto and IF, and a FAQ section covering 40+ common questions.
Key Ideas
The core frameworks and findings
Contents
Chapter by chapter — click to expand
- Survey of 9,000 people's biggest keto/IF sticking points
- Why Berg struggled with consistency himself and what changed
- What this booklet covers and the author's personal commitment
- Standard American Diet = 1.5 cups of sugar/day flowing through arteries
- Two fuel systems: glucose vs fat/ketones
- Ketones as preferred fuel; body's fat reserves vs tiny glucose reserve
- Healthy Keto® vs generic keto (macros + quality)
- IF definition: fewer meals, smaller eating window, 16–20+ hour fast
- Why every meal triggers insulin and why that blocks fat burning
- Full list of keto benefits: cognitive, metabolic, cardiovascular, hormonal
- Full list of IF benefits: autophagy, growth hormone, stem cells, anti-aging, brain repair
- Detailed autophagy benefits: anti-aging, neuroprotection, immune rejuvenation, mitochondrial repair
- Side effects of NOT doing keto/IF: weight gain, brain fog, cravings, fatty liver, memory issues
- Chronic high insulin → serious downstream conditions
- Uric acid spike → lemon juice or potassium citrate
- Cold hands/feet → sea kelp (iodine)
- Moodiness → B vitamins (nutritional yeast)
- Nausea → reduce fat, add bile salts
- Hair loss → trace minerals, B vitamins, omega-3s, electrolytes
- Dry mouth → 2+ liters of water/day
- Constipation → adjust vegetable volume
- Diarrhea → reduce MCT oil, sugar alcohols, or vegetables
- Insomnia → reduce protein, caffeine; increase potassium and magnesium
- Keto rash → vitamin B2 (nutritional yeast)
- Kidney stones → limit oxalates (almonds, spinach, chocolate), 2.5 L fluid, lemon juice
- Heart palpitations → electrolytes (potassium)
- Dizziness → add sea salt
- Low back pain → vitamin D
- Right shoulder pain → gallbladder overload; reduce fats and nuts
- Bloating → stomach acid support (betaine HCl, ACV, bile salts)
- Low B1/B5 → nutritional yeast
- Low potassium → 7–10 cups of vegetables, electrolyte powder
- Low salt → teaspoon sea salt/day
- Low stomach acid → ACV, sea salt, betaine HCl
- Hidden carbs → check for grains/fruit/sugar in foods
- Too little sleep → 7+ hours
- Headaches → gradual transition, sea salt, potassium
- Muscle cramps → full electrolyte complex (K, Mg, Ca, Na, Cl), or pH issue → ACV
- Cravings → keep carbs under 50 g, no hidden carbs
- Brain fog → B vitamins + electrolytes
- Fatigue during transition → more sea salt
- Complete good/avoid lists for: fats, proteins, organ meats, nuts/seeds, fish, seafood, herbs, vegetables, berries/fruit, liquids, additionals, vegan proteins
- Avoid: high-sugar fruits (apples, bananas, grapes, mangos), grains (oats, rice, wheat), legumes (beans, chickpeas)
- Hidden carbs to watch: cashews, sweetened milks, processed meats with sugar/dextrose
- Keto adaptation: 3 days for new enzymes, 4–12 weeks for full fat adaptation
- Three macronutrients and their Healthy Keto ratios
- Net carbs calculation (total carbs minus fiber)
- Fat-to-protein ratios for common foods (eggs, steak, salmon, bacon, nuts)
- Visual plate example (what a Healthy Keto meal looks like)
- Work backward from the week; pick simple recipes
- Gather ingredients; batch cook
- Take advantage of leftovers; keep it simple; plan correct ratios
- Introduce fasting only after meals are solid
- Use Dr. Berg's Meal Maker tool
- How to read labels: first ingredient, sugar content, net carbs, servings, GMO/MSG/seed oils
- Fewer meals = massive savings (up to $600/month)
- Meal planning reduces food waste
- Simple ingredients, bulk buying, meat shares
- Full 21-day meal plan: breakfast, lunch, dinner (and occasional keto desserts with meals)
- One week of two-meal examples (16–20 hour IF window)
- Keep it simple (4 ingredients or fewer)
- Keep it tasty (variations on the same base)
- Use the freezer (soups, fat bombs, raw meat portions)
- Batch cook protein for 3 days; add fresh salad each time
- Keto bread, tortillas, pizza crust, pasta substitutes, dessert alternatives
- Links to online recipes (cheesecake, mug cake, brownies, ice cream)
- Start: 3 meals/day, zero snacks
- Add more fat at end of meal to extend fasting window
- Skip breakfast if not hungry (breakfast myth debunked)
- Transition to 2 meals/day → 16–20 hour fast
- OMAD for cognitive enhancement and metabolic acceleration
- 48–72 hour fasts for plateau-breaking
- Biggest mistakes: giving up too early, no electrolytes, stopping if cholesterol rises, not combining keto + IF, cheat days, dirty keto, having junk food at home
- 12 Healthy Keto rules
- 11 Intermittent Fasting rules
- Eating tips (do/don't)
- Fasting tips (do/don't)
- Foods/drinks/supplements allowed during fasting (water + lemon, ACV, MCT oil, electrolytes, nutritional yeast, cod liver oil, probiotics, stevia)
- Dirty keto = macros only, no nutrient quality consideration
- High omega-6 / low omega-3 from dirty fats
- Healthy Keto = avoid GMOs, MSG, seed oils, non-organic dairy, fast food
- Transition tips: read labels, fresh over processed, organic/grass-fed/wild-caught
- Discipline strategies: raise emotion, find a trainer/coach, keep your word, make it easy
- Stress eating: awareness, replace junk with keto foods, address root cause
- Preventing snacking: don't eat breakfast, low carbs, no junk in the house
- Social situations and holidays: eliminate bad options early, eat vegetables first, keto-friendly substitutes
- Lower stress: walks, hobbies, music, acupressure, stop watching news
- Improve insulin resistance: potassium, B1, chromium, vitamin D, magnesium
- Check for hidden carbs in "keto" products, yogurt, dressings, wine
- Extended fasting: 48–72 hours, OMAD every other day
- Correct macros: carbs < 10 g/day, moderate protein, reduce added fat
- Exercise during fasting: twice weekly intense full body + daily 45-min walks
- Fix digestion: bile salts, betaine HCl, adjust vegetable volume
- Fix fatty liver: choline, bile salts, milk thistle
- Do/don't guide for restaurant meals
- Keto-friendly options at Chipotle, Panera, Olive Garden, Five Guys, McDonald's, Taco Bell, Chick-fil-A, Wendy's, Burger King, KFC, Subway, Arby's, Culver's, In-N-Out, Starbucks, Jack in the Box
- Keto Cheesecake Fluff (7 min, 6 ingredients)
- Keto Mug Cheesecake (microwave, 9 ingredients)
- Keto Tortillas (almond flour, xanthan gum)
- Keto Cheesy Garlic "Breadsticks" (mozzarella + parmesan dough)
- Keto Avocado Bacon Chicken Salad
- Keto Egg Bacon Salad
- Cabbage Steaks (vegan)
- Keto Mayonnaise (olive oil, egg)
- Keto Tuna Salad
- Microwavable Keto Bread (90 seconds, 4 ingredients)
- Keto Bread Cloud (egg white rolls, 25 min)
- Keto Steak Salad
- Lox Cream Cheese Salad
- Salmon Cabbage Bowl
- Counting calories? No, but track calorie percentages.
- Keto without IF? Not recommended except during pregnancy/breastfeeding.
- Cheat days? No — even one meal sets you back 48–72 hours.
- Saturated fat harmful? No — it's carbs and sugars that cause high cholesterol, not fat.
- Cholesterol going up? Temporary — normalizes as fat adaptation completes.
- Plateau? Check protein, fat, hidden carbs; build muscle.
- Paleo vs Keto? Paleo allows more carbs — problem for insulin-resistant people.
- Children on keto? Yes, but consult doctor first.
- Children IF? Younger children: 3 meals/no snacks. Supervised.
- Ketone strips no longer showing? Body is fully adapted and using all ketones — this is good.
- Coffee on keto? Yes, max 1 cup/day.
- Bulletproof coffee? OK, but may slow weight loss.
- Supplements? Nutritional yeast and electrolyte powder at minimum. No synthetic vitamins.
- Cheese? Yes — organic, grass-fed preferred.
- Organic required? Strongly recommended (30% more nutrients, no pesticides/GMOs).
- Pregnant/breastfeeding? Healthy Keto yes; IF no.
- Bone broth during fasting? No — breaks the fast.
- Stevia? Safe, doesn't affect ketosis.
- Exercise? Yes — 15% of results, but don't overtrain.
- Alcohol? No — destroys liver cells, stops weight loss.
- Oatmeal? No — too many carbs, anti-nutrients in grains.
- Best oils for cooking? Coconut, palm, tallow, ghee, olive, avocado. Avoid: soy, canola, corn, sunflower, safflower, peanut.
- Best nuts? Pecans, Brazil nuts, walnuts, macadamia, pine nuts, almonds. Limit: cashews, pistachios.
Practical Takeaways
What to actually do with this
1. Cut net carbs to 20–50 g/day; aim for 20–30 g for best results. 2. Eat 70% of calories from fat, 20% protein (3–6 oz/meal), 5% vegetable carbs. 3. Eat 7–10 cups of non-starchy vegetables daily — this is non-negotiable. 4. Start with 3 meals/no snacks before attempting fasting. 5. Skip breakfast when not hungry; extend the overnight fast as long as possible. 6. Move to 2 meals/day (16–20 hour fasting window) as default. 7. Take electrolytes daily: sea salt (1 tsp/day), potassium (from vegetables), magnesium. 8. Take nutritional yeast for B vitamins — not synthetic supplements. 9. Take cod liver oil or fatty fish for omega-3s. 10. Read every label: sugar, net carbs, first ingredient, GMO/MSG/seed oils. 11. Remove all junk food and grain products from the house completely. 12. Choose organic, grass-fed, wild-caught, pasture-raised foods whenever possible. 13. Never snack — even on keto foods. 14. Add fat at the end of meals (avocado, nuts, keto bomb) to extend satiety and fasting window. 15. No cheat days; find keto substitutes for cravings instead. 16. If hitting a plateau: check for hidden carbs, extend fast, reduce added fat, add exercise. 17. If experiencing keto flu: increase sea salt and electrolytes immediately. 18. Allowed during fasting: water + lemon, ACV, MCT oil (pure fat, no insulin spike), electrolyte powder, nutritional yeast, sea salt, herbal tea, coffee (no milk/sugar), probiotics. 19. When eating at restaurants: order grilled meats without bun/bread, large salad with olive oil and vinegar, substitute fries/rice with steamed vegetables. 20. Give yourself 4–12 weeks to fully fat-adapt before judging results by weight alone.
See Also
Related books in the library