Nuritas, a biotechnology company specializing in the discovery of bioactive peptides from whole foods, has published new peer-reviewed research in the NFS Journal comparing its fava bean-derived ingredient, PeptiStrong, to leucine and HMB, two well-established compounds for supporting muscle protein synthesis.
Nuritas' study introduced a novel human skeletal muscle model developed by the company to capture age-related changes. The research found that PeptiStrong activated muscle-building signaling significantly more than either leucine or HMB alone, with increases in ribosomal S6 phosphorylation of nearly six-fold in young cells and over three-fold in aged cells. Critically, the research identified that PeptiStrong works through the MAPK/ERK pathway, a mechanism independent of the LAT1 transporter that leucine relies on to enter cells, and which was found to be markedly reduced in aged muscle cells.
Fava Bean-Derived Muscle-Focused Ingredients
Nuritas Debuts Research for Its PeptiStrong
Trend Themes
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Plant-based Peptide Performance — Bioactive peptides derived from crops such as fava beans create room for differentiated muscle-support products beyond conventional amino acid supplementation.
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Age-responsive Nutrition Models — Human cell models that reflect age-related biological changes are reshaping how functional ingredients are validated for longevity and active aging markets.
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Pathway-specific Supplementation — Ingredients targeting alternative cellular mechanisms may redefine efficacy standards when traditional nutrient transport pathways become less reliable with age.
Industry Implications
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Sports Nutrition — Performance supplement brands can differentiate through clinically supported plant-derived ingredients that support muscle protein signaling in novel ways.
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Healthy Aging — The growing focus on preserving muscle function in older adults strengthens demand for nutrition solutions designed around age-related cellular decline.
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Biotechnology — AI-enabled peptide discovery and proprietary human tissue models are expanding the commercial potential of food-based bioactives across wellness categories.