Beets are known for changing the color of your urine — into an alarming red. (If you're cooking beets, they can also stain your fingers and clothes, too.) Called beeturia, the condition comes from the compound betacyanin that gives beets their color. A body's response to betacyanin is believed to be both genetic and based on the amount of stomach acid in each person, so not all beet-eaters will pee red.
The cooked-cabbage aroma some people's urine gives off after eating asparagus comes from the digestive process and again, doesn't happen to everyone. Only some people metabolize asparagus’ sulfuric compounds in a way that produces the aroma and not all of the people who produce the smell can even detect it, a study recently published in the journal Chemical Sense found.
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