The 7 Best Supplements For Men. Don’t walk down the vitamin aisle without this guide.

The vitamin aisle can be overwhelming.

With so many supplements available, it can be tough to separate the muscle-building, brain-boosting, highly beneficial brands from the ineffective—and even harmful—ones.

 That’s where we come in. Here are the seven nutrients your body needs most, and the best way to find them naturally and in supplements.


Choline repairs DNA and supports brain function. A deficiency can raise your risk of liver damage and even liver cancer, says Steven Zeisel, M.D., Ph.D., director of the UNC Nutrition Research Institute.

In one study, people who ate the most choline cut their pancreatic cancer risk by a third.

Get it naturally: Eggs are loaded. If you ate six pork ribs, you’d still be just shy of your day’s quota (550 milligrams), but a three-egg omelet provides more than 80 percent of that amount.

How to supplement: Pick a pill that has less than 100 percent of your daily value—you want just enough to top off your tank. Gut bacteria transform excess choline into trimethylamine, which causes fishy-smelling BO.


It’s brain food. It may help fight headaches and muscle cramping and improve your mood, says Emily Tarleton, R.D., of the University of Vermont College of Medicine. Shoot for about 400 to 420 milligrams a day.

Get it naturally: Plants suck up magnesium in soil through their roots; seeds harbor the bulk of it. Top sources: sesame seeds (126 milligrams per ¼ cup), raw cashews (100), and almonds (97). Black beans, technically a seed, have 84 milligrams per full cup.


How to supplement: Nearly half of Americans fall short on magnesium in their diet. The Institute of Medicine recommends taking up to 350 milligrams a day from a supplement. Your body absorbs magnesium citrate best.



Your body turns nitrates into nitric oxide, a gas that boosts bloodflow to muscles during exercise. Result: more oxygen and glucose to help you optimize your performance, says Gary Miller, Ph.D., an exercisephysiologist at Wake Forest University.

Get It Naturally: Aim for 1.7 milligrams a day per pound of your body weight (about 300 milligrams for a 180-pound guy). Celery, beets, and arugula all provide 250 milligrams per 3 ½ ounces.

How to supplement: Even if you’re hitting the daily goal, boosting intake can enhance athletic performance. Men in a U.K. study who drank beet juice containing about 800 milligrams of nitrates daily for a week had better sprint performance and reaction times.

Vitamin B12

It keeps your brain’s spark plugs (the neurotransmitters) firing so information can be relayed. Even a mild B12 deficiency can speed cognitive decline with aging. B12 is also required for proper red blood cell formation.

Get it naturally: Eat more steak! Meat and seafood are the main sources of B12, and carnivores can easily reach their daily 2.4 micrograms by enjoying a 6-ounce serving of top sirloin (2.8 micrograms) or canned tuna (2.5).

How to supplement: If your diet is light on meat and fish, ask to have your B12 levels checked the next time you have blood work done. If you’re low, then yes, a supplement can help protect your brain and blood.

Vitamin K

Vitamin K keeps your heart healthy. People with low K intake are nearly three times as likely to have heart problems as those who get the most.

Related: 30 Easy Ways to Save Your Heart Today

Get it naturally: Never skimp on the salad course. A mere cup of rawkale provides 113 micrograms of vitamin K­­­– that’s 94 percent of your daily requirement. Spinach and collard greens are also great sources.

How to supplement: Adults need 120 micrograms a day, but the average man falls short with just 85. So supplement with at least 45 micrograms of K2, the type your body absorbs best, says Cees Vermeer, Ph.D., founder of the R&D Group Vita K at Maastricht University in the Netherlands.

Vitamin D

The sunshine vitamin improves your mood and lowers your risk of heart disease, cancer (especially prostate), diabetes, and Alzheimer’s, says Michael Holick, Ph.D., M.D., of Boston University Medical Center Hospital, author of The Vitamin D Solution.

Get it naturally: Unless you’re routinely outside and shirtless between 10 a.m. and 3 p.m., you’re probably falling short, says Dr. Holick. Add D-rich foods like fortified dairy and fatty fish (e.g., salmon) to your diet.

How to supplement: Technically, fortified dairy is a supplement: Milk has about 100 IU of vitamin D per cup. But that’s far below the 1,500 to 2,000 IU a day the Endocrine Society recommends. Popping extra D can help.


As antioxidants go, zinc is powerful stuff. It’s found in every cell, assists in healing wounds, and helps beat sneaky viruses. And if you want kids, know this: Zinc also improves sperm quality.

Get it naturally: Aim for 11 milligrams of zinc daily; six oysters have about triple that. Bonus: Your body can bank some of the excess, says David Killilea, Ph.D., who studies nutritional metals.

How to supplement: If you’ve noticed your energy and sex drive flagging, turn to foods or supplements that contain both zinc and copper to help support cells in your reproductive and central nervous systems. The two work in concert; supplementing with high levels of zinc alone can result in a copper deficiency.

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