supplement

Widely available supplement may explain brain boost from exercise | Science

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A good workout doesn’t just boost your mood—it also boosts the brain’s ability to create new neurons. But exactly how this happens has puzzled researchers for years. “It’s been a bit of a black box,” says Tara Walker, a neuroscientist at the University of Queensland’s Brain Institute. Now, Walker and her colleagues think they have … Read more

This scientist accused the supplement industry of fraud. Now, his own work is under fire | Science

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In 2013, a team led by Steven Newmaster, a botanist at the University of Guelph (UG), took a hard look at popular herbal products such as echinacea, ginkgo biloba, and St. John’s wort. The team published a study that used DNA barcoding—a system to identify species using small, unique snippets of genetic material—to test whether … Read more