| Beta-carotene in large quantities will turn you the color of a carrot.  It is also found in sweet potatoes.  The look is more like jaundice than a tan.  Some "health-food" stores used to market the B-carotene in a capsule, and after a month your eyes, skin and urine would be quite orange, but it would never be confused with a tan. 
				__________________"When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity.  -  Albert Einstein
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