A multivitamin for men is one of the most important supplements, mainly because it offers protection against a wide range of nutrient deficiencies. A recent study also found that taking a multivitamin every day can help reduce the risk of cancer, so it can have powerful effects. But you need to get a high-quality multi, which you find by making sure the brand sources its vitamins and minerals from whole foods like fruits and vegetables. These versions usually cost more, but for a reason: They're often better. I prefer to take a powder multi or capsules with powder instead of a pill that's compressed and hard as a rock – you're going to have a hard time breaking that down. Powdered supplements or capsules are more assimilable and digestible.