“I like to call this the chill-out nutrient,” says van Wyk. Who wouldn’t want that, right? Surprisingly, though, most people are low: Achy muscles, anxiety and trouble sleeping are just a few symptoms related to magnesium deficiency. One study published in Nutrients even found evidence to suggest that taking magnesium supplements can help with anxiety. That might also explain that chocolate craving—just one square of dark chocolate contains 41 milligrams of the mineral. (“You heard me—it’s basically medicine!”) Other great sources are dark, leafy greens (a subject van Wyk is an expert on), almonds and oysters.
Psst: While van Wyk recommends upping your magnesium intake to feel better, one PureWow staffer swears by soaking in a bath with magnesium crystals for instant zen. This one from Aromasong ($30) is designed to relieve muscle tension and improve skin health.