Research suggests that dietary changes, including taking certain vitamins, minerals, and other supplements, may be helpful for people with anxiety disorders. Although some supplements have been shown to help reduce anxiety symptoms, other interventions, such as therapy, diet, and lifestyle modification, and medication, may be more effective. Research suggests that certain dietary supplements may help reduce anxiety symptoms, including magnesium, vitamin D, saffron, omega-3s, chamomile, L-theanine, vitamin C, curcumin and multivitamins.