18 Best Dietary Supplements for Men

Men's Health reveals which dietary supplements can help a man needs keep his heart, immune system, and sex life in top shape.

The right supplements can help your heart, sharpen your immune system, and even improve your sex life. The wrong ones, however, can be ineffective or even harmful. "You run into problems because most men are 'prescribing' these things themselves," says Tod Cooperman, M.D., president of consumerlab.com, an independent tester of health and nutritional products. "Don't take supplements with abandon. They should be used carefully, because taking in too much of certain nutrients can cause problems."

We consulted with top doctors, reviewed the latest research, and waded through marketers' claims to bring you 18 of the best supplements for men. Use our guide—along with advice from your own doc, since many supplements can interact with other medications—to fine-tune your strategy. Read more