Collagen Peptides
2 scoops (20g)Why Collagen Peptides shows up in protein-forward diets
This is the single most important caveat on this entire site: collagen contains essentially zero tryptophan, one of the nine essential amino acids, so it cannot function as a primary protein source for muscle building no matter how high the label's gram count reads.
Serving-size math
A 2 scoops (20g) portion delivers 18.0g of protein and roughly 74 calories. Scaled per 100 calories, that works out to 24.32g of protein — useful for comparing against other foods on a calorie-matched basis rather than a weight-matched one.
Prep tip
Use it for its actual evidence base — joint and skin research — dissolved into coffee or a smoothie, not as a replacement for whey, casein, or a whole-food protein serving.
Best for
- joint/skin support, not muscle-building protein
Frequently asked
How much protein is in collagen peptides?
90.0g per 100g, or 18.0g per 2 scoops (20g).
Is collagen peptides a complete protein?
No — incomplete — contains no tryptophan, cannot support muscle protein synthesis alone.