A new type of health test uses DNA to give nutritional advice. People are spending hundreds of dollars to map out their genetic profile with a saliva test. There are several tests on the market, but critics say it is difficult to know how accurate they are. Michelle Miller spoke to a woman who says the test helped end years of stomach pain.
From: http://www.cbsnews.com/videos/nutrition-plans-based-on-dna-tests-raise-questions/
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