It’s helpful to explain this to consumers in terms of “building blocks.”
Does it count towards your daily macronutrient and calorie intake? Absolutely (it yields about 4 kcal per gram). However, because it’s low in BCAAs (branched-chain amino acids) like leucine, it won’t stimulate muscle protein synthesis (MPS) the way traditional proteins do. We buy and use collagen peptides specifically for the connective tissues—hair, skin, nails, tendons, and cartilage—thanks to its high concentration of glycine, proline, and hydroxyproline.
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