O'Neill: Magnesium supplements likely don't improve sleep

Professor Luke O'Neill stated that scientific evidence is weak for magnesium supplements aiding sleep, despite common claims. O'Neill explained that magnesium is abundant in the body, primarily in bones and soft tissues, making deficiency uncommon. He noted that while magnesium might relax muscles and boost melatonin, studies show no clear sleep benefits. The professor highlighted that studies on magnesium for insomnia and muscle cramps showed marginal or no effects, suggesting the popular sleep aid claim lacks strong scientific backing.