Skin Carotenoids Linked to Metabolic Syndrome Risk: Hisayama Study

The study investigated the relationship between skin carotenoid scores and metabolic syndrome in 1,618 Japanese individuals aged 40 and above. Carotenoids, pigments found in vegetables, accumulate in the skin, making skin carotenoid levels an indicator of vegetable intake. Researchers used noninvasive optical sensors to measure skin carotenoid scores and found a strong inverse association with metabolic syndrome prevalence. Adjusted analyses revealed that individuals in the highest quartile of skin carotenoid scores had a 61% lower likelihood of metabolic syndrome than those in the lowest quartile. These results suggest that higher skin carotenoid levels indicate a lower risk of metabolic syndrome.