Roadmap/07 - Bodybuilding & Weight loss

Introduction

This page provides guidance on bodybuilding and weight loss from a metabolic-friendly perspective, inspired by Ray Peat's principles. The approach emphasizes minimizing stress, supporting anabolic processes, and maintaining a high metabolic rate through non-destructive resistance training, proper fueling, and sustainable habits. Bodybuilding focuses on building quality muscle mass to enhance strength, metabolism, and overall health, while weight loss prioritizes slow, toxin-minimizing fat reduction without compromising muscle or thyroid function. Many principles overlap, such as resistance training's benefits for both goals, and adaptations for fat loss are highlighted in the second section.

Bodybuilding

Philosophy

• 2–3×/week resistance
• Avoid failure / marathons
• Fuel - pre/post
• Emphasize sleep
• Think: regular, gentle, deliberate exercise; stop before fatigue
• One-hour outdoor walks with friends > intense gym workouts
• Enjoyable goals; sustainable; minimal stress

Training principles

“Concentric resistance training has an anabolic effect on the whole body. Sprinting is probably o.k. Endurance exercise is the worst. I don’t think martial arts are necessarily too stressful.” - Ray Peat

Do's

• Concentric, anaerobic activities
  • Concentric = muscle shortens under load
  • Less injury, less tissue damage, stronger metabolic support
• Weight lifting
• Bodyweight exercise
• Walking in stimulating environments
• Uphill hiking, deadlifts, sled pushes (anabolic exercises)

Mind–muscle connection

• Visualize workouts
• Flex in mirror
• “No weight” mental training can still cause growth
• Kinesthetic control → direct stimulation signals

• If high level, use microdoses of DHEA/testosterone with aspirin/nicotine; thyroid boosts reflexes (Ali’s method)
• Anabolic exercises include uphill hiking, deadlifts, sled pushes.
• Regular, gentle, deliberate exercise; stop before fatigue; favors one-hour outdoor walks with friends over intense gym workouts; should be moderate, continuous, with enjoyable goals.
• Sleep enough unless you want to experiece muscle loss
  • Research shows just one night of sleep deprivation reduces muscle protein synthesis by about 18%.

• Avoid raising stress to excessive levels
• Avoid fatigue (use nose-breathing gauge);
• Lmit prolactin/growth hormone with aspirin, baking soda, caffeine, carbs; reduce tryptophan/serotonin from protein
  • One study says that lifters were able to do 27% more reps on squat using baking soda
• Eat enough carbs to avoid raising cortisol and adrenaline

Don'ts

• Prolonged aerobic work (hypothyroidism, lactic acid, catabolism)
  • Training to failure (produces excess lactic acid)
• Train fasted, intense fasted training triggers TNF-α, IL-6, no extra benefits in muscle gain or weight loss
• Heavy bulk and cuts

More in harm reduction

Stress reduction + glycogen

“Forty minutes of moderate exercise can drop T3 to zero if glycogen isn’t replenished.” - Ray Peat

"One of the overlooked things is that muscle activity increases your body temperature and the increased body temperature increases your calorie burning ability. And so it's similar to what thyroid supplementing does. The good body warming effect of physical activity keeps your metabolic rate going with an anti-inflammatory effect. If you're sedentary, your body's temperature falls and you go into a pro-inflammatory state." - Ray Peat

Muscle recovery depends on glycogen restoration

Recovery principles

• Sleep emphasized
• Avoid stress buildup
• Prevent glycolytic exhaustion
• Warm body temp = good metabolic function
• Cold hands/feet = metabolism tanking → add milk/juice
• Stop workouts before fatigue

Overload & frequency

“The effectiveness of any load depends on the condition of the muscle at the time the load is applied.” – Bryan Haycock

• 2–3 days/week
• Volume vs intensity must be managed
• Avoid prolonged eccentric/trauma

Breathing / form

• Nose breathing as fatigue gauge
• Maintain tongue posture
• Slow, controlled lifting (no momentum; longer TUT)
• Check asymmetries (“trauma patterns”)

Minimal stimulation needed

• High-metabolism diet → minimal inflammation/stress → anabolism more default
• Muscles “itch” when needing activation
• Feel for correct reps/resistance instead of counting

Other activities

• Walking, rucking, dancing, chopping wood
• Making love, wrestling, gardening
• “Gym focus needs scrutiny”

Link to Activities

Cardio

• No formal cardio e.g running/cycling on treadmill/stationary bike
• Cardio should be incidental e.g
  • Beach swims
  • Hikes/Rucking
    • uphill or stairs
  • Roaming cities/marinas
  • Lindy walks
  • Wind sprints
  • Dogwalking

Fueling principles

Eating guidelines

• Pro-metabolic diet = minimal inflammation/stress, anabolism is default
• Pre-workout:
  • Peaty protein shake recipe
  • egg yolks + yogurt 1h before, honey right before
• Post-workout: chocolate milk
• Avoid tryptophan excess (reduce serotonin),
  • Don't main muscle meats without adequate gelatin for a good tryptophan:glycine ratio
• Avoid combining starchy carbs with PUFAs
• Avoid fasting
• Maintain high Ca:P ratio
• Eat nutrient-dense, easy-to-digest foods
  • Milk, fruit, gelatin, seafood, liver, eggs
• Use food to recover, not willpower

Link to Food pyramid

Outputs:

• Maintenance calories
• Carb/protein/fat distribution (e.g., 80/15/5 template in the fat-loss section)
• Milk/juice/gelatin targets
• Mineral targets (Ca, Na, K, Mg)

Red flags

• Feeling hungry all day
• Feeling cold (hands/feet)
• Excessive sweating + stress
• High prolactin (spiked by B6 deficiency during training)
• Fatigue from nose-breathing test
• Crash dieting
• Training fasted
• Overtraining with endurance work

Muscle gain

"The effectiveness of any load depends on the condition of the muscle at the time to load is applied." - Bryan Haycock

Effective bodybuilding focuses on anabolic efficiency and mitochondrial health rather than just external muscle mass.

Muscle quality vs. mass

• Muscle mass loss only explains about 10% of the associated loss in strength, indicating that mitochondrial function is a more critical factor.
  • Proper resistance training can actually reverse genetic markers of aging in human skeletal muscle.
• Optimizing the Anabolic State:
  • T3: Can maximally stimulate protein synthesis in skeletal muscle at both transcriptional and translational levels (increasing initiation and probably elongation rates) even in the complete absence of measurable circulating insulin or growth hormone.
    • Ray said that young hardgainers are often hypothyroid thus impairing ATP and the ability to retain magnesium, supplementing T3 alongside it fixes it.
  • The T/C Ratio: Prolonged training can halve testosterone and double cortisol, creating a catabolic state similar to illness.
    • High cortisol specifically targets fast-twitch (Type 2) muscle fibers for atrophy.
  • DHT (Dihydrotestosterone): This potent androgen is essential for maintaining bones and muscles; resistance training has been shown to double DHT levels in older men.
  • Coffee: Consumption increases total testosterone and acts as a dopamine booster, which lowers the catabolic and anti-fertility hormone prolactin.

Managing metabolic toxins:

• Ammonia toxicity: During exercise, ammonia can double, inhibiting mitochondrial energy production. High-protein meals (e.g., 60g) significantly increase ammonia levels in the blood and breath compared to 30g meals.
• Nitric Oxide (NO): While small amounts are useful, high-resistance training can spike NO for up to 48 hours, potentially inhibiting cytochrome oxidase and impairing energy production.

Bioenergetic training principles:

• Intensity over volume: Moderate-intensity training (60% 1RM) stimulates both muscle quality and quantity, whereas lower intensity (40% 1RM) only increases size.
• Avoid overtraining: Consistently low energy and sleep disturbances are primary indicators that a training load is excessive.
• CO2 and recovery: Transcutaneous carbon dioxide therapy accelerates bone healing and increases mitochondrial DNA levels, making it a powerful candidate for post-workout recovery.
• Train like a sprinter
• Preserve muscle to support fat loss
• Low-carb undermines thyroid and metabolism
• Avoid PUFAs (interfere with digestion and enzymes)
• Build muscle to raise metabolism
• Back training emphasized (posture, V-shape, metabolic demand)

  

  Fig. 1 Relative telomere length of master sprint athletes and age-matched non-athletes. effect size (Cohen’s d). Data expressed as mean ± SD.

Supplements

Key supplements:

• Zinc: Supplementation increases both testosterone and thyroid levels and mitigates their decline after exhaustive exercise.
• Magnesium: High-dose magnesium (500mg) can lower the inflammatory marker Interleukin-6 (IL-6) during training.
• Collagen: Supplementing with collagen peptides (high in glycine and proline) during resistance training significantly increases fat-free mass and strength in sarcopenic men.

Taurine	Improves protein utilization, increases anabolic hormones (LH, testosterone, thyroid hormone), stimulates muscle protein synthesis, reduces cortisol (directly catabolic)
Creatine	Supports ATP production, improves strength and lean mass, buffers lactic acid, reduces myostatin (inhibits muscle growth) Improves maximal strength by 5-15% Increases muscle size through multiple mechanisms Enhances glycogen storage by ~82% when combined with carbohydrates Supports cognitive function Dose: 5g daily
HMB	Anti-catabolic leucine metabolite that reduces muscle breakdown, supports recovery, preserves lean mass during caloric deficits or stress, improves nitrogen retention, supports mitochondrial function
Vitamin D3 + K2	Supports testosterone synthesis, calcium metabolism (important for muscular contraction), reduces inflammation, improves insulin sensitivity, supports bone strength and muscular function
Aspirin (low dose)	Lowers systemic inflammation and prostaglandin production (catabolic mediators), supports thyroid function, reduces muscle breakdown via COX inhibition, protective against excessive stress response
Vitamin B3 (Niacinamide)	Increases NAD+ and mitochondrial respiration, anti-lipolytic (preserves glucose for energy use), reduces cortisol and free fatty acids
Vitamin B6	Avoid prolactin spike during exercise
Vitamin E	Protects against PUFA-induced oxidative stress, supports testosterone and pituitary function, enhances recovery, reduces muscle damage and inflammation after training
Gelatin / Collagen	Provides glycine and proline (supportive amino acids for tendon, ligament, and connective tissue recovery), anti-inflammatory, balances methionine intake from muscle meats, supports thyroid and liver detoxification
Redbull//Coffee	Great pre-workout
Choccy milk	Post-workout recovery

Plans

Novice (2-3×/week)

• Concentric-dominant compounds (push, pull, squat/hinge)
• Slow tempo, no momentum, stop before fatigue
• Add 30–60 daily minutes of pleasurable walking

Intermediate

• Add sled pushes, uphill walking
• Moderate load increases
• Emphasize technique and mind-muscle awareness
• Track body temp/pulse

Garage/Home Options

• Dumbbell pullover (ribcage expansion, Landshark approved)

• Bodyweight squats
• Bands for concentric work
• Slow push-ups, rows
• Sled pull (homemade)
• Walking inclines outdoors

Equipment

• Glass bottle
• Fat grips
• Non-plastic workout clothes

Weight loss

The metabolic impact of food quality

From a bioenergetic perspective, weight loss is not merely a matter of calorie expenditure (CICO), but a result of maintaining a high metabolic rate and minimizing chronic stress

The modern obesity epidemic is heavily linked to the 300% increase in polyunsaturated fatty acid (PUFA) consumption, along with high iron and high-fructose corn syrup, rather than refined sugars alone. Studies show that even when controlling for calories, people in high-PUFA environments are significantly heavier than those from previous decades

Micronutrient deficiencies and adiposity

• Thiamine: There is a strong correlation between obesity and thiamine deficiency; approximately 50% of bariatric surgery candidates are deficient in this vital B-vitamin. Thiamine is essential for carbon dioxide (CO2) production and ATP synthesis.
• Iron and copper: Consuming drinking water with high levels of iron and copper can intensify weight gain and increase adipose tissue mass.

Hormonal roadblocks to fat loss

• Cortisol and hypoglycemia: Low-carbohydrate and calorie-deficient diets can trigger hypoglycemia, which causes a surge in cortisol.
  • Cortisol promotes fat storage while breaking down healthy muscle tissue through gluconeogenesis.
• Parathyroid Hormone (PTH): Elevated PTH is associated with weight gain and reduced strength.
• Estrogen: This hormone promotes fat storage and can increase the uptake of harmful endotoxins (LPS) from the gut.
• Endorphins: Often praised in exercise, endorphins are actually heavily associated with obesity and can inhibit protective hormones like progesterone and testosterone.

The problem with endurance training

• Myosteatosis: Excessive endurance training increases intramyocellular lipids (fat within the muscle), a condition linked to insulin resistance and obesity.
• Endotoxemia and leaky gut: Strenuous or prolonged exercise increases intestinal permeability, allowing bacteria-derived endotoxins to enter the blood, which triggers inflammation and further promotes fat storage.

Diet

“The ratio of calcium to phosphate is very important; that’s why milk and cheese are so valuable for weight loss, or for preventing weight gain. For people who aren’t very active, low fat milk and cheese are better, because the extra fat calories aren’t needed.” - Ray Peat

• Pro metabolic, easy to digest, low PUFA, smaller more frequent meals to keep the metabolism up.
• Protein from milk/cheese/low-fat dairy; limit grains/meats to ~3-4 oz.
• Add cooked leafy greens (Ca/Mg), gelatin, fruits, shellfish, occasional organs.
  • Ray Peat's leafy greens recipe

Macros

• High carb, low fat, moderate protein
• 80% carbs / 15% protein / 5% fat

Slow fat loss

• Don’t lose fat too quickly
  • Rapid loss releases stored toxins via free fatty acids → liver overload → metabolic crash
    • Can cause diabetes and liver disease
• Aim for 6–12+ months

Activity for fat loss

• Walking uphill/stairs (burns more calories than running, less stress, no equipment, no mental resistence, no excuse not to)
• Strength training as main stressor
• Swimming
• Any movement you find fun
• Add walks (30 min/day) if desired

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Do

Nutrition

• Eat enough food to feel satisfied, not stuffed.
  • Nutrient dense and easy to digest foods only
    • (milk, fruit, gelatin, seafood, liver, eggs, etc.  - typical Peat staples).
  • Ensure minerals, vitamins (especially vitamin D), and adequate protein.
• Weight loss needs calorie deficit relative to raised metabolic rate, not just lower intake.
  • If normally consuming excessive callories, slight restriction by lowering fat and maybe starch intake
• Use food to recover after training instead of relying only on willpower.
• Maintain high Ca:P ratio
  • High dairy intakes can speed up fat loss, even if the calory intake is the same
    • Boosts metabolic rate 30%+ in mammals, increasing calorie burn.
    • Allows you to raise your maintenance calories from 1500 to 2000
    • Suppresses PTH, enhances mitochondrial uncoupling, T4-to-T3 conversion, lactic acid clearance.
  • High phosphate (grains, muscle meats, excess dairy) causes calcification, weak bones, elevated PTH/FGF23/IL-6, slow metabolism, fat gain, even with calcium buffering

More about calcium and weight loss in FunctionalPS

Activity

• Get sunlight, good sleep, and spend time with supportive people.
  • Vitamin D via sun/tanning required.
• Use stress wisely
• Let your main stressor be training (resistance work, moderate cardio, walking).
• Avoid piling on unnecessary stress (long fasts, excessive cardio, under-eating).
• Train sustainably, increasep physical activity outside of the gym too
• Strength training as the main stress input.
• Add manageable cardio (e.g., 30-min walks) if desired.
• Gradually increase volume/intensity, not all at once.

Metabolism

• Stay metabolically supportive
• Keep body temperature, pulse, and energy levels as signs metabolism is supported.

Expectation

• Go slow
  • Aim for fat loss over 6–12 months (or more).
• Use how you feel and the mirror as guides rather than daily weigh-ins.

Don’t

• Crash dieting (T3 plummets, metabolic rate downregulates, famine response)
  • The Minnesota Starvation Experiment showed the side effects of heavy calorie restriction:
    • Heart mass ↓ ~15–25%
    • Liver size ↓ ~20–30%
    • Skeletal muscle ↓ significantly (up to ~40% in some)
    • Metabolic rate ↓ ~30–40%
    • Thyroid output ↓
    • Testosterone ↓
    • Brain structurally preserved, but function altered
• Keto/fasting (raises stress, hair loss, burns muscle too, increases risk of diabetes)
• Extreme cardio
• Chronic stress lifestyle
• Obsessive calorie counting
• Expecting quick fixes (3 months ≠ undo 10 years)

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Core principle

Always balance stress with nourishment.

Core Principle: Restrict calories without slowing metabolism. Avoid feeling hungry (day or night).

Hunger Management: Consume quick calories on hunger cues:

• Cup of juice
• Cup of skim milk
• Sugary creamy coffee w/ coconut oil
• Raw egg w/ milk + maple

Caveat: If fewer calories consumed (sans fasting damage) yield no weight loss, intensify Peating to address root causes (estrogen, stress, gut issues, thyroid). Prioritize body repair over weight loss, natural loss likely follows. Temporary weight gain possible during experimentation.

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Hunger & satiety

• Never “feel hungry” all day
• If always full → “Peating too hard” → reduce fat/snacking
• If cold hands/feet→ eat more milk/juice

Ray's quotes

"Q: What would you do to lose 50-60 lbs?

Peat: First stop eating for a while, then go on a low fat milk and cheese diet, with a little bit of orange juice and an occasional egg and oyster. Calcium and vitamin D are supportive of the thyroid hormone."

"On a 1000 calorie short term diet:

It isn't good for your health, but if you have to lose weight. Keeping the minerals up is very important. Calcium, magnesium, potassium, and sodium are very protective against too much of the stress reaction."

"What should be the focus if a person is gaining weight?

"Not to eat too many calories first and then to gradually shift towards a lower fat intake, whatever keeps your temperature up without having an excess of calories."

"Sucrose itself, some experiments show that you can increase the metabolic rate by 20% just with sucrose. And so when you do it just right, sugar is a very powerful weight loss instrument."

"As your ability to burn fat decreases with your falling thyroid, the cortisol eats up your skeletal muscles that burn fat, and so the unburned fat gets laid down in your trunk and neck and face area."

"I saw people lose weight stably when they had the habit of eating large amounts of tortilla chips fried in coconut oil, but those chips disappeared when their producers were pressured into switching to other oils"

"The anti-obesity effect of coconut oil is clear in all of the animal studies, and in my friends who eat it regularly"

"If a person really wants to concentrate on losing weight, using milk as their main protein, milk and gelatin are the most favorable for weight loss, partly because the milk comes with such a generous supply of calcium, and calcium powerfully stimulates the metabolic rate."

"Q: What about weight loss for women who are in the menopause if they lose that weight do they then poison themselves with estrogen as it comes out of the cells?

Peat: "Just temporarily but it's better to get rid of it than have it local."

"So even as a matter of weight gain, the worst fats for gaining weight are the polyunsaturated vegetable oil fats. The saturated fats don't stimulate weight gain to the same degree."

""One thing that often surprises people who want to lose weight is that milk drinkers as a group are the least likely to be fat... Calcium itself is a major factor in preventing the inflammation process which is important in turning on the fat storage."

"Q: So you're okay with cow dairy?

Peat: "Thats the best practical major protein because of the very high calcium ratio to phosphate."

"The starch isn't quite as stimulating to the metabolic rate as sugar. So the things that I chronically mention in connection with a therapeutic diet happen to be ideal for a weight-loss diet, low-fat milk and orange juice."

"On a water fast for 10 days, they found that 80% or more of their weight loss came from destruction of their muscle and skin mass. But if they had a 500-600 calorie diet with adequate minerals, almost all of the weightloss was in the form of fat loss rather than muscle"

"On adding ~200 calories of coconut oil a day:

"[My weight] had been steady at 185 pounds for 25 years, but over a period of six months it dropped to about 175 pounds. I found that eating more coconut oil lowered my weight another few pounds, and eating less caused it to increase"

"An increased intake of calcium is the single most important nutritional thing for losing weight."

"If you lose too fast, that is going to cause damage by oxidative decomposition of the unsaturated fats as they're being oxidized at a higher rate. So I think slow weight loss is the best thing. And having enough protein and minerals in your diet during weight loss can make a tremendous difference in the amount of stress."

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