Melatonin Supplements Could Prevent Osteoporosis
In recent years, melatonin supplements have exploded on the market as a tool to help people get to sleep—the Nutrition Business Journal estimated that in 2012 (the most recent year for which data are available) sales reached $260 million; in 2007, that number was just $90 million. Now scientists say the immensely popular pills could help prevent or even reverse osteoporosis. Researchers from McGill University in Montreal found that when old rats were given supplements to regulate their circadian rhythm, their bones became denser and more flexible.
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