Setting Your Macros

Maintenance is the calorie intake at which your weight holds steady, and every goal — cutting, bulking, recomp — is defined relative to it. A quick estimate: body weight in pounds times 14 to 16. A 180 lb person who trains a few times a week lands somewhere around 2,700 calories.

Here is the part most people miss: any formula is only a starting guess. Metabolic rate, daily movement, and how accurately you log food vary so much between individuals that two people with identical stats can maintain on intakes 500+ calories apart. The formula gives you a number to start from; your scale weight over the next two to three weeks tells you what your maintenance actually is. Eat the estimated number consistently, weigh daily, and watch the weekly average — stable means you found it, drifting means adjust.

Protein gets set first because it does a job no other macro can: providing the raw material to build and keep muscle. Everything else flexes around it.

The target is 0.7 to 1.0 grams per pound of body weight per day. For our 180 lb lifter, that is roughly 130 to 180 g. Use the higher end when cutting — in a deficit, adequate protein is the main thing deciding whether the weight you lose is fat or muscle. If you carry a lot of body fat, base the target on your goal weight instead of current weight so the number stays sane.

At 4 calories per gram, 160 g of protein accounts for 640 calories. Subtract that from your calorie target and what remains is your budget for carbs and fat.

After protein, the carb/fat split matters far less than people think — total calories and protein drive results. That freedom is a feature: build the split around what you enjoy and how you train, because the plan you enjoy is the one you follow.

Two guardrails. Keep fat at or above roughly 0.3 g per pound of body weight per day (about 55 g for a 180 lb person) — chronically very low fat can disrupt hormone production. And if you train hard — heavy lifting, CrossFit-style conditioning, lots of volume — bias toward carbs, since they are the fuel for high-intensity work and support recovery between sessions. A lifter training four or more days a week usually feels and performs noticeably better on higher carbs.

Beyond those guardrails, it is genuinely preference. Feel flat and weak in training on low carbs? Shift calories from fat to carbs. Never satisfied without fattier meals? Shift the other way. Same calories, same protein, same results on the scale.

Your macros are a hypothesis; the scale trend is the experiment. Weigh yourself every morning after using the bathroom, before eating, and average each week. Single days are noise — water, sodium, carbs, and digestion swing daily weight by several pounds — but weekly averages reveal the trend.

Compare weekly averages across two to three weeks. Cutting but weight is flat? Drop intake by 200 to 300 calories (from carbs and fat, never protein). Bulking but the scale is not moving? Add 100 to 200. Then hold the new number and re-measure. This loop — consistent intake, weekly average, small adjustment — beats any calculator, because it is calibrated to your actual body and your actual logging habits.

When cutting, aim to lose 0.5 to 1.0 percent of body weight per week — 0.9 to 1.8 lb for a 180 lb person, which takes roughly a 300 to 600 calorie daily deficit. Faster than that and you increasingly lose muscle, tank training performance, and fight hunger you probably cannot sustain. Leaner people should sit at the slow end; those with more to lose can push the faster end.

When bulking, slower is smarter: 0.25 to 0.5 percent of body weight per month for experienced lifters, up to around 1 percent per month for newer ones. Muscle growth has a speed limit — a surplus beyond what growth can use just becomes fat you will have to diet off later. A 100 to 300 calorie surplus covers it.

Recomp — losing fat and gaining muscle at once — is real but situational. It works best for beginners, people returning after a layoff, and those with higher body fat. Eat at maintenance or a slight deficit, keep protein at 1 g per pound, train hard, and judge progress by the mirror, measurements, and gym numbers rather than the scale, which may barely move while your body changes.

A diet break is a planned one-to-two-week return to maintenance calories in the middle of a longer cut. It is not quitting — it is maintenance practice. Extended dieting drags down energy, training quality, and non-exercise activity, and grinds on your willpower. A break restores all of those, and the scale blip from refilled carb stores and water is not fat.

A practical rhythm: after every 6 to 10 weeks of continuous deficit, take 1 to 2 weeks at maintenance, adding the calories back as carbs. Take one sooner if training has fallen apart, sleep and mood are suffering, or adherence is slipping badly. People who diet in blocks with breaks tend to reach the same end point with less misery and less rebound than people who white-knuckle one long continuous cut.