Researchers evaluate popular fad diets in the USA against Dietary Guidelines for Americans, finding some can achieve high nutritional quality with minor adjustments. The study reveals that diets like low-FODMAP, vegan, and military can score well on the Healthy Eating Index when planned carefully.
DNA barcoding is now being used to identify the plant matter in human feces, revealing what a person has eaten. A reliable genetic marker for plant-based foods can be retrieved from poop, showing not only what was eaten, but in what relative amounts. The technique should improve clinical trials, nutrition studies and more.
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