Data from: Parsing the life-shortening effects of dietary protein: effects of individual amino acids

Sara Arganda, Sofia Bouchebti, Sepideh Bazazi, Sophie Le Hesran, Camille Puga, Gérard Latil, Stephen J. Simpson & Audrey Dussutour
High-protein diets shorten lifespan in many organisms. Is it because protein digestion is energetically costly or because the final products (the amino acids) are harmful? To answer this question while circumventing the life-history trade-off between reproduction and longevity, we fed sterile ant workers on diets based on whole proteins or free amino acids. We found that (i) free amino acids shortened lifespan even more than proteins; (ii) the higher the amino acid-to-carbohydrate ratio, the shorter...
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