Daily gaps and weekly energy totals
Each weekly figure multiplies the daily calorie deficit by seven. The table compares the size of energy gaps; it does not turn them into a reliable forecast of scale-weight change.
| Approach | Daily deficit | Approx weekly deficit |
|---|---|---|
| Slow | 250 kcal | 1,750 kcal |
| Moderate | 500 kcal | 3,500 kcal |
| Aggressive | 750 kcal | 5,250 kcal |
| Very aggressive | 1,000 kcal | 7,000 kcal |
The scenario labels are shorthand for progressively larger gaps. A listed deficit is not a minimum food intake or a recommendation to select the largest row. Its suitability depends on the starting energy estimate and the person’s circumstances.
Check the seven-day calculation
A hypothetical maintenance estimate of 2,400 kcal/day and intake of 1,900 kcal/day create a 500 kcal/day gap. Maintaining that arithmetic gap for seven days gives 3,500 kcal. The calculation does not establish a particular loss in kilograms.
Energy arithmetic is not a weight forecast
Expenditure estimates, recorded intake, fluid balance and changing energy needs all affect observed weight. The larger examples should not be read as routine targets. Use an appropriate professional assessment when a calorie change would affect health or recovery.
Frequently asked questions
Does 3,500 kcal in the weekly column guarantee a set weight loss?
No. It is seven times the illustrated daily energy gap. Weight change is affected by adaptation, measurement uncertainty and changes in body water.
Is a 1,000 kcal deficit appropriate for everyone?
No. Listing that scenario does not establish that the resulting intake would meet a person’s needs.
Sources and context
NIDDK: why calorie deficits do not predict weight change with a fixed rule