Carrots are full of vitamins, minerals and fibers that are good for your health. But eating too many carrots can bring in too much beta-carotene the molecule responsible for carrots' bright orange hue and a precursor of vitamin A. This can lead to excess blood carotene which can discolor the skin.Known as carotenemia, the condition occurs because carotene is a fat-soluble molecule. Excessive quantities of it tend to accumulate in the outermost layer of skin, resulting in yellow- or orange-pigmented skin, particularly in the palms, soles, knees and nasal area.Although carotenemia occurs mostly in infants when they are fed too much pureed carrot baby food, it can occur in adults as well. In a case report published in The Journal of Dermatology in 2006, a 66-year-old woman's skin turned yellow-orange after she took too many carotene oral supplements. One cup of raw chopped carrots has about 15 mg of carotene, according to the U.S. Department of Agriculture's Nutrient Database, so you'd need to eat half a cup of chopped carrots every day for months, in order to turn to her shade of yellow.
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