Effects of fish protein hydrolysate ingestion on postexercise aminoacidemia compared with whey protein hydrolysate in young individuals
Cordeiro EM, de Oliveira GV, Volino-Souza M, Velozo ODC, Alvares TS. J Food Sci. 2020; 85(1):21–27.
PubMed 31846088 · doi:10.1111/1750-3841.14970
Compares people who got the treatment with people who did not.
- Who or what was studied
- 9 physically active adults (6 men, 3 women)
- Design
- Randomised, double-blind crossover
- Dose
- 0.25 g/kg of fish protein hydrolysate, whey protein hydrolysate or placebo, taken straight after a resistance-exercise session
- Duration
- Blood sampled for 180 minutes
What it found
Both fish and whey protein hydrolysates raised blood levels of total amino acids, essential amino acids, branched-chain amino acids and leucine after exercise, compared with placebo. There were no significant differences between fish and whey at any time point.
What it doesn't show
It measured amino acids in the blood, not muscle growth or strength, and it shows only that fish hydrolysate is digested quickly, like whey. It says nothing about effects from specific bioactive peptides. Nine people.
Funding and conflicts of interest
No funding or conflict-of-interest statement appears in the PubMed record. Check the full text.
Summary written from the study's abstract and checked against PubMed on November 9, 2026. How we check studies. Educational information, not medical advice.
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