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A 39-year-old member asked:

What is the nutritional difference between proteins, lipids and carbohydrates?

1 doctor answer3 doctors weighed in
Dr. Martin Fried
Nutrition 38 years experience
Fats more calories: Fats are more energy dense- they have 9 calories per gram compared to 4 calories per gram in carbohydrates and proteins.
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Last updated Apr 13, 2015

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