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Is collagen good for building muscle? | Nutritionist Explains | Myprotein

Aug 26, 2026
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Is collagen good for building muscle? Muscle growth requires essential amino acids, with leucine playing a particularly important role in stimulating muscle protein synthesis. Collagen, however, has a very different amino acid profile from complete proteins such as whey. In this YouTube Short, expert nutritionist Dr Richie Kirwan explains why collagen isn't the ideal protein source for building muscle and why the essential amino acid content of your protein matters. Key Facts: Your body needs all nine essential amino acids to effectively support muscle protein synthesis. Leucine plays a key role in triggering the muscle protein synthesis response. Collagen is very low in leucine compared with high-quality muscle-building proteins such as whey. Collagen lacks the essential amino acid tryptophan, meaning it isn't considered a complete protein. Collagen provides amino acids that can support connective tissues, but it isn't an optimal protein for maximising muscle growth. Complete, leucine-rich proteins are generally better choices when muscle gain is the primary goal. FAQ:

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