Scientists discover a promising blood sugar–regulating compound in red alga
It is a dietary staple found in sushi, rice wraps and ramen toppings. Commonly known as nori in Japan and gim in Korea, red seaweed is especially popular across Asia. Yet, despite its widespread consumption, many of its nutritional benefits remain poorly understood. Now, research led by Hokkaido University scientists has discovered that digestion of a particular red alga releases a peptide, or a…
Scientists from Hokkaido University have discovered a novel peptide called EVYR in red alga, specifically in dulse (Devaleraea inkyuleei), which may help regulate blood glucose levels and potentially prevent diabetes. The researchers subjected the seaweed, commonly found in sushi and ramen toppings, to an artificial digestion process in the lab to mimic human digestion.
During this process, EVYR, a four-amino acid peptide, was found to inhibit an enzyme called dipeptidyl peptidase-IV (DPP-IV), which breaks down hormones that stimulate insulin release. By inhibiting this enzyme, EVYR helps maintain the activity of the hormones and allows them to stimulate insulin release for longer, potentially aiding in blood glucose control.
The study, published in Food Bioscience, suggests that dulse could be used to develop functional foods that support blood glucose control, adding it to a growing list of food sources with blood glucose-regulating properties, such as fish, milk, and soybeans.
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