Eating too many carrots, or other foods high in beta-carotene, can cause a condition called carotenemia. “High levels of beta-carotene can cause a yellowish discoloration of the skin, most noticeable on the palms and soles. Unlike jaundice, though, carotenemia does not cause yellowing of the whites of the eyes. Carotenemia is usually seen in young children, is not toxic and generally does not cause other health problems. The treatment is a low-carotene diet, but it may take several months for the skin to return to its normal color. But don’t substitute tomatoes for your carrots! Too many tomatoes can cause a yellow-orange discoloration of the skin called lycopenemia, due to the accumulation of lycopene in the tissues. The treatment for lycopenemia is also dietary modification.”