Maintenance Calories

Updated February 28, 2026

Maintenance Calories are the intake that keeps body weight stable over time.

Estimation steps

Step	Method	Rule
1	Set baseline with training, sleep, and intake context	avoid changing two behavior streams at once
2	Use model estimate from energy components	include RMR and movement proxies
3	Compare with 14 to 28 day scale trend	use mean of trend, not one-day values
4	Reconcile with logged food consistency	adjust only after confirming logging quality

Driver	Typical effect on maintenance
Sleep debt	increases mismatch through appetite and movement drift
Stress and workload	can raise intake needs or suppress activity compensation
Hormone and cycle shifts	alter water and appetite response
Sudden activity swings	changes in training density shift estimates

Signal	Update cadence	Action
3 to 5 days heavy activity without trend confirmation	hold changes, monitor two more weeks	keep recommendations stable
2 weeks with repeated mismatch and good logs	adjust maintenance by 100 to 150 kcal bands	apply one component at a time
Persistent mismatch after 4 weeks	redo baseline capture and check logging rhythm	widen trend window before final move

Fuel blends these methods into an estimate of total daily energy expenditure (TDEE) to set calorie targets and support adaptive calorie goals as activity and body mass change.