Nutrition glossary
What Are Maintenance Calories?
**Maintenance calories** are the number of calories you eat to keep your weight stable — the point where intake matches your total daily energy expenditure. Eat below it to lose, above it to gain.
In practice, your maintenance level and your **TDEE** are the same number, just named from the eating side rather than the burning side.
Short answer
Maintenance calories are the number of calories you eat to keep your weight stable — the point where intake matches your total daily energy expenditure. Eat below it to lose, above it to gain.
How it works
Maintenance is where calories in equal calories out. Since your TDEE is what you burn, eating that exact amount holds your weight steady. A formula gives you a starting estimate, but the only way to confirm your true maintenance is to eat a consistent amount for 2–3 weeks and see whether your weight trend rises, falls, or holds.
Why it matters for your goals
Every goal is set relative to maintenance: a deficit below it for fat loss, a surplus above it for muscle. Get maintenance wrong and every target you build from it is wrong too.
It also isn't a fixed number — it falls as you lose weight and through metabolic adaptation, and it can be rebuilt with a reverse diet. Treat it as a moving target, not a one-time calculation, and you'll keep your goals on course.
Frequently asked questions
How do I find my maintenance calories?
Estimate them from your TDEE, then verify by eating a consistent amount for 2–3 weeks. If your weight trend holds steady, that's your maintenance; if it moves, adjust up or down by 100–200 calories.
Why do my maintenance calories keep dropping?
As you lose weight your body needs less energy, and prolonged dieting lowers it further through metabolic adaptation. That's why a once-correct maintenance number stops being accurate over time.
Should I eat at maintenance sometimes while dieting?
Yes — periodic diet breaks at maintenance can ease the fatigue and adaptation that come with a long deficit, making the overall diet easier to sustain and protecting muscle.
Keep exploring
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