Insects are a viable protein source for human consumption: from insect protein digestion to postprandial muscle protein synthesis in vivo in humans: a double-blind randomized trial
Wesley J. H. Hermans, Joan M. Senden, Tyler A. Churchward‐Venne, Kevin J.M. Paulussen, Cas J. Fuchs, Joey S.J. Smeets, Joop J. A. van Loon, Lex B. Verdijk, Luc J. C. van Loon · American Journal of Clinical Nutrition (2021)
TL;DR
Lesser mealworm protein digests and builds muscle similarly to milk protein in young men.
What they did
Researchers studied 24 healthy young men in a double-blind trial. The men ate 30 grams of either lesser mealworm protein or milk protein after resistance exercise. Scientists tracked amino acids in the blood and muscle building over 5 hours.
What they found
Over 5 hours, 73% ± 7% of mealworm protein-derived phenylalanine and 77% ± 7% of milk protein-derived phenylalanine entered the blood. Muscle protein synthesis increased after both proteins at rest and after exercise. After exercise, rates reached 0.059 ± 0.015%/h for mealworm and 0.073 ± 0.020%/h for milk, with no difference between groups.
Why it matters
Studies suggest that lesser mealworm protein may support muscle building in a way similar to milk protein. This means insect protein could be a viable alternative to conventional animal protein. More research is needed to see how this fits into everyday meals.
Limits
The study only included healthy young men, so the results may not apply to other groups. This is general education, not medical advice.
Jargon explained
- postprandial
- happening after a meal
- phenylalanine
- a building block of protein called an amino acid
- muscle protein synthesis
- the process by which the body builds muscle protein
Read the original: https://doi.org/10.1093/ajcn/nqab115
Full citation
Wesley J. H. Hermans, Joan M. Senden, Tyler A. Churchward‐Venne, Kevin J.M. Paulussen, Cas J. Fuchs, Joey S.J. Smeets, Joop J. A. van Loon, Lex B. Verdijk, Luc J. C. van Loon (2021). Insects are a viable protein source for human consumption: from insect protein digestion to postprandial muscle protein synthesis in vivo in humans: a double-blind randomized trial. American Journal of Clinical Nutrition. DOI: 10.1093/ajcn/nqab115
Open access (hybrid): https://doi.org/10.1093/ajcn/nqab115
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Educational information only, not medical or dietary advice. Consult a qualified health professional for personal nutrition guidance.