Is there a downside to foods with added nutrients?

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Americans spend billions of dollars on fortified foods every year. From orange juice with vitamin C and calcium to nutrition bars with added vitamins to energy drinks, there is a downside to foods with added nutrients.

Jamie Kopf, with Consumer Reports, says you want to be careful not to take in too much calcium or vitamin C. It's added to quite a few foods and vitamin C can lead to intestinal problems. Calcium can increase your risk for kidney stones among other things.

Consumer Reports advise us to look at labels to make sure we're not eating more than 2,000 mg of vitamin C per day.