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Calorie Deficit Guide: Lose Fat, Keep Muscle (2026)

Bill Shepard
(@bill-shepard)
New Member

A calorie deficit means eating fewer calories than your body burns daily. A 500 calorie deficit leads to approximately 0.5kg (1lb) of fat loss per week. This is the only scientifically proven way to lose body fat.

Quick answer: A 500 calorie deficit per day is optimal for losing ~0.5kg/week of fat while preserving muscle. Keep protein high (2.0-2.2g/kg) and don’t reduce training intensity.

Find out how many calories to eat to lose fat at the optimal rate.

A calorie deficit means eating fewer calories than you burn (TDEE). This forces your body to use energy reserves (fat) to make up the difference.


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Topic starter Posted : 30/03/2026 3:56 am
Jeremiah Shaw
(@jeremiah-shaw)
New Member

I was looking for exactly this. Thanks for the breakdown.


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Posted : 30/03/2026 4:56 pm
Lonnie Shaffer
(@lonnie-shaffer)
New Member

Great content. How would you adjust this for a 4-day split?


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Posted : 31/03/2026 3:56 pm
(@jasmine-rodriguez)
New Member

Solid routine! Does this work well for natural athletes?


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Posted : 01/04/2026 3:56 am
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