A member asked:

Will i need to burn more calories than i eat to improve my fitness level?

A doctor has provided 1 answer
Dr. James Henning answered

Specializes in Anesthesiology

No: A calorie deficit will cause weight loss. You may or may not achieve a higher level of fitness. Training does burn calories, but fitness requires fuel (calories) to strengthen muscles and since muscled require calories for growth, burning off too much may actually cause muscle wasting.

Answered 12/12/2017

4.9k views

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