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A 42-year-old member asked:

Can low carb diet use your muscle or fat for energy?

1 doctor answer1 doctor weighed in
Dr. David Sneid
Endocrinology 42 years experience
All the same: Your body uses mostly carbohydrate for energy, and then some fat is broken down to replenish lost calories if you're losing weight. Muscle is only broken down in starvation, cancer, severe disease or long-term illness.

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Last updated May 28, 2013

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