Analysis Version
v1
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assertion
Analysis v1
Strong Opposition

Eating protein alone can trigger the same insulin response as eating carbs, so you don’t need both.

0
Pro
46
Against

Evidence from Studies

Supporting (0)

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No supporting evidence found

Contradicting (1)

46

Community contributions welcome

46

Addition of carbohydrate or alanine to an essential amino acid mixture does not enhance human skeletal muscle protein anabolism.

Randomized Controlled Trial
Human
2013 Mar

The study found that eating just protein is enough to stop muscle breakdown and build muscle — adding sugar or other carbs didn’t help any more. So, you don’t need extra carbs if you’re getting enough protein.

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Even though sugar and alanine make insulin go up, that doesn’t stop your muscles from breaking down any more than protein alone does.

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Insulin doesn’t make your muscles grow bigger after lifting weights—it just helps stop your muscles from breaking down, especially if you’ve eaten enough protein.

1
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Even if you pump insulin into a healthy young person’s body and boost certain amino acids by 150%, their muscles still won’t grow more—because insulin needs other amino acids too to make muscle.

33
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Adequate protein intake preserves muscle mass, which maintains metabolic rate.

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