Mixed
The same 25g whey + 5g collagen blend increases myofibrillar protein synthesis during exercise recovery, but does NOT significantly increase muscle connective protein synthesis in the exercised leg compared to placebo.
If you are doing resistance training, your body already significantly boosts connective tissue synthesis. Adding a whey-collagen blend won't necessarily boost connective tissue synthesis further in the working muscles compared to just placebo, though it does help muscle protein synthesis. Focus on the blend for muscle growth, but don't expect it to be a magic bullet for tendon repair in exercised muscles.
Following exercise, protein blend ingestion increased myofibrillar but not muscle connective protein synthesis rates in the exercised leg.
Why this rating
Same high-quality study design as N1.
Source
Ingestion of a Whey Plus Collagen Protein Blend Increases Myofibrillar and Muscle Connective Protein Synthesis Rates
Thorben Aussieker et al. · Medicine & Science in Sports & Exercise · 2024
DOI 10.1249/mss.0000000000003596
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This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →