Walnuts and the gut-heart axis: Study suggests increased production of Homoarginine

27 Mar 2023 — The benefits on heart health from consuming walnuts may be explained by the nut’s effects on the gut microbiome, as it increases the production of amino acid L-homoarginine naturally in the body, according to the researchers. Eating walnuts also showed a higher expression level for genes involved in biosynthetic and metabolic pathways.