Solar purpura (also known as "Actinic purpura," and "Senile purpura") is a skin condition characterized by large, sharply outlined, 1- to 5-cm, dark purplish-red ecchymoses appearing on the dorsa of the forearms and less often the hands. : 825 The condition is most common in elderly people of European descent. It is caused by sun-induced damage to the connective tissue of the skin.No treatment is necessary. The lesions typically fade over a period of up to three weeks. See also
List of cutaneous conditions

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The findings suggest that the microbiome in the gut is modified by a plant based diet, and for a time a person will lack the bacteria required to convert choline and carnitine into TMA at the same rate of a animal protein based diet. Reducing the intake of fish, red meat, white meat, offal, egg yolks, legumes, beans, whey products, and other foods and supplements that contain high levels of choline. Choline is an essential nutrient so complete elimination of choline is unadvised. As above, white meat (chicken, turkey) and plant based products may be fine to consume if red meat is predominantly avoided. Note, while raw ingredients like soybeans have a relatively high choline content, some processed products like soy sauce, soy milk and tofu have low choline content, due to dilution of ingredients, small serving size, or removal as a byproduct during the manufacturing process. Its best to check the choline content of food and the portion size for a better understanding of how much choline is being consumed. Vitamin B2 at 50 mg per day in combination with diet resolved smell issues for 2 children with TMAU. B2 was found to increase residual FMO3 performance. Taking low doses of antibiotics such as neomycin and metronidazole in order to reduce the amount of bacteria in the gut, although this is not recommended as a long term solution due to antibiotic resistance and other side effects.