Maintenance Calories: Finding the Number and Keeping It
You finished the cut. The scale dropped, the habits feel automatic, and for the first time in months you are not in a deficit. So now what? This is the moment most people fumble. They swing straight back to their old eating, watch the needle climb again, and end up in an exhausting cycle of lose-then-regain. The missing step is maintenance — a deliberate, trackable calorie target that holds your weight steady while you live a normal life.
Maintenance Is Simply Your TDEE
Maintenance calories equal your total daily energy expenditure (TDEE) — the energy your body burns at rest plus activity. The closer you estimate this number, the smoother the transition. Using the CalorLab worked example: a 30-year-old active male, 175 cm and 80 kg, has a Mifflin-St Jeor BMR around 1,717 kcal. Multiply by a moderate activity factor of 1.55 and his estimated TDEE is roughly 2,661 kcal. If that were his real maintenance level, eating about 2,660 kcal a day would keep his weight stable.
Fine-Tune With a Two- to Three-Week Test
Estimates are only a starting point. To find your true number, eat at your estimated maintenance daily for two to three weeks and weigh yourself each morning. Ignore the day-to-day noise; use a seven-day moving average instead. If the average creeps down, you need to eat a little more; if it creeps up, trim a little. A shift of roughly 100–150 kcal at a time is enough — large jumps only create new guessing games. The target is simple: over a few weeks, your moving average stays essentially flat.
Why "More Is Better" Backfires
Many people react to the end of a cut by under-eating "to be safe," assuming that keeps the fat off. It does the opposite. Eating too little for too long lowers your energy, slows your recovery, and makes adherence to healthy habits collapse. Maintenance is meant to be a genuine eat-enough level, not a disguised second deficit. Because about 7,700 kcal equals roughly 1 kg of body fat, even a small chronic under-maintenance will slowly shrink you — and a chronic surplus will slowly bloat you. The goal is to land in the middle and hold it.
Treat Maintenance as a Skill, Not a Finish Line
Your number will drift as your weight, activity, and age change, so re-estimate every few months or whenever your routine shifts dramatically. Keep the good habits you built on the cut — the protein, the vegetables, the consistent sleep — because maintenance on those habits feels effortless rather than restrictive. And keep the protein high. Muscle responds to protein intake year-round, and holding muscle keeps your metabolic rate closer to what the calculator predicted in the first place.
Frequently Asked Questions
What happens if I eat too little to maintain?
You slowly keep losing weight, feel low on energy, and risk losing muscle along with fat. Chronic under-eating on a "maintenance" plan also makes it far easier to eventually binge and overshoot. If your moving average is dropping fast, add calories back.
How often should I re-estimate my maintenance?
Re-check every two to three months, or any time your weight, activity level, or muscle mass changes noticeably. A fresh estimate avoids the drift that quietly turns maintenance into a slow cut or surplus.
Is maintenance a single number or a range?
Practically it is a range of a few hundred calories around your estimate. Day-to-day intake can swing up and down; what matters is the weekly average staying flat, which prevents meaningful fat or muscle change.
Do I still need a lot of protein at maintenance?
Yes. Keep protein near 2 g per kg of bodyweight to preserve muscle and stay full. Higher protein also gives you more flexibility with carbs and fat, since protein and carbs are 4 kcal per gram and fat is 9 kcal per gram.