The right supplement can help quell stress and anxiety. Anti-stress supplements can reduce stress hormones, especially cortisol, can decrease inflammation, boost immunity, and lowers the risk for high blood pressure, stroke, and heart attack. 
Research suggests that certain dietary supplements may help reduce anxiety symptoms, including magnesium, vitamin D, saffron, omega-3s, chamomile, L-theanine, vitamin C, curcumin, CBD, and multivitamins