Nutrition Without Religion

More sects have been built around food than around anything else in fitness. Keto, paleo, eating windows, detoxes, fear of carbs after six, "dirty" and "clean" foods. What all these religions share: they sell a simple rule of faith instead of understanding mechanics. I propose the opposite — understand the mechanics; they're not complicated. After that you won't need to believe. You'll know.

Mechanics one and main: energy balance. Spend more than you eat — body mass goes down. Eat more than you spend — it goes up. That's conservation of energy, and no food, no meal timing, no nutrient combination cancels it. Every diet that works works for one reason: it creates a calorie deficit one way or another. Keto removes a whole food class, intermittent fasting narrows the eating window — different mechanisms, same essence.

Starting point — calculation. I use the Mifflin-St Jeor formula for basal metabolic rate: for men, ten calories per kilogram of body weight plus six and a quarter calories per centimeter of height minus five calories per year of age plus five; for women the same but minus 161 instead of plus five. Multiply by an activity factor: from 1.2 for sedentary life to 1.7 and above for heavy physical activity and frequent training. That's an estimate of maintenance calories — the point everything else is built from.

An example to make it concrete. Man, 90 kilograms, 180 centimeters, 35 years old: BMR roughly 1,850 calories. With three or four sessions a week and an active lifestyle, a factor around 1.55 gives maintenance near 2,850 calories. Wants to lose fat — minus 300-500 from maintenance, so 2,350-2,550. Wants to gain muscle — plus 200-300, around 3,100. The formula gives an estimate, not truth: then you calibrate against the real weight trend from chapter four. Weight flat two or three weeks — adjust 10 percent and watch.

Rate of change is where most people break. Sustainable fat loss — 0.5-1 percent of body mass per week; for a ninety-kilogram person that's 450-900 grams. Faster is possible, but you pay in muscle, strength, sleep, mood and almost guaranteed rebound. Gaining is even slower: 200-400 grams per week for a beginner, half that for an experienced lifter; everything above that is fat, not muscle. Aggressive paces look decisive and end in rollback. Moderate paces look boring and end in results.

Mechanics two: protein. It's the one macronutrient with a hard floor for a strength athlete: 1.6-2.2 grams per kilogram of body mass per day — the range research from recent years converges on. Protein builds and preserves muscle, gives better satiety per calorie and costs the body the most to digest. On a deficit it's doubly critical: sufficient protein plus strength training decides whether you lose fat or muscle. Practice is simple: a protein portion in each of three or four meals.

Fats and carbs are preference, not dogma. Fats — minimum 0.8-1 gram per kilogram of weight; going lower isn't wise: fats participate in hormonal regulation and vitamin absorption. Everything else in the calorie budget — carbs, and that's fuel for hard training. No need to fear them: carbs don't make you fat, calorie surplus does. Split fats and carbs within these frames to suit yourself — how you feel, satiety, enjoyment. The best split is the one you can hold for years.

Now the principle that breaks every religion: there are no forbidden foods. There's context and quantity. The 80/20 rule: 80 percent of calories from whole, minimally processed food (meat, fish, eggs, grains, vegetables, fruit, dairy), 20 percent from whatever fits your numbers. Pizza within calories and protein doesn't destroy anything. A ban does: the food becomes sacred, desire accumulates, the blowout is a matter of time — and after it people quit everything, though the problem was the ban structure, not the food.

On blowouts separately, because that's where years of work break. One unplanned large meal is nothing: plus or minus a day on the weekly trend is nearly invisible. What makes it catastrophic is the reaction "all is lost, I'll start Monday," followed by four days of free fall. The rule is simple: the next meal is a normal meal. No starvation compensation, no punishment cardio — just the normal next meal. A system with shock absorption survives hits. A glass system doesn't.

Supplements — honestly and briefly, no magic. Creatine monohydrate: three to five grams daily, every day, no loading or cycling — the most studied supplement in sport, gives a few percent to strength output and slightly faster recovery; cheap, safe for healthy people, works not immediately but after a couple of weeks of saturation. Whey protein isn't chemistry — it's convenient food: protein from milk, helps hit the target when regular food doesn't. That's it. Fat burners, detoxes, boosters — money spent masking unwillingness to sort the base numbers.

Water — an underrated point, especially in a hot climate where I live. Target — 30-40 milliliters per kilogram of body mass per day; more with training in heat, plus electrolytes with heavy sweating. Even mild dehydration cuts strength output and concentration, and thirst often masks as hunger — people eat where they should have drunk. A water bottle at your desk and at training solves more than half the sports nutrition aisle.

Assemble it as a weekly system, not a daily one: count average numbers over seven days, not perfect single days. Identify your weak points in advance — for some it's evening at the fridge, for some it's food on the run — and build solutions from the environment chapter under them: ready food accessible, protein snacks at hand. Nutrition isn't a sprint to vacation and not a holiness exam. It's a background process that, set up right, barely demands attention. Set the numbers, leave room for pleasure — and close this question for years.