How much of a deficit is needed per pound of fat?

One pound of fat is approximately 3,500 kcal. A daily deficit of 500 kcal should theoretically produce ~0.5 kg (1 lb) of fat loss per week, though actual results vary due to water retention and metabolic adaptation.

What is the maximum safe deficit?

Deficits above 25% of TDEE risk significant lean mass loss and metabolic adaptation. For most athletes, 15-20% of TDEE (300-600 kcal/day) balances fat loss with muscle preservation.

How does training affect fat loss at a deficit?

Resistance training creates a protein-sparing environment that protects lean mass during a deficit. Athletes who maintain heavy training preserve significantly more muscle than sedentary individuals at the same caloric deficit.

Caloric Deficit for Fat Loss Calculator

Calculate daily caloric deficit size to achieve target fat loss rate, and assess the risk of muscle loss or metabolic adaptation at different deficit levels.

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Frequently Asked Questions

How much of a deficit is needed per pound of fat?

What is the maximum safe deficit?

How does training affect fat loss at a deficit?