Men's multivitamins are often sold with words like "performance" and "vitality." The research points somewhere less exciting and more useful: skip the extra iron, avoid megadoses, and focus on the basics. Here's what to check.
Written by Vita Globe Editorial Team | Reviewed against NIH Office of Dietary Supplements guidance and randomized trials in men
What should men look for in a multivitamin?
Look for a balanced formula with little or no iron, moderate doses near 100% of the Daily Value, and no megadoses. Adult men need just 8 mg of iron a day, usually covered by food[1]. In the Physicians' Health Study II, a daily multivitamin modestly reduced total cancer in men over about 11 years[2], but high-dose single nutrients like vitamin E have backfired[3].
Caveat: The USPSTF found insufficient evidence that multivitamins prevent heart disease or cancer in the general population[4], so treat any men's multivitamin as a nutritional backup, not protection.
Sources: NIH ODS iron · PHS II 2012 · Klein 2011 · USPSTF 2022 · Verified 2026-09-27
In this article
Why do most men not need iron in a multivitamin?
Adult men need 8 mg of iron a day[1], and most get that from meat, beans, fortified cereals and other foods. Unlike women of reproductive age, men don't have monthly iron losses, so supplemental iron is rarely needed unless a doctor finds a deficiency.
Too much iron can also be a concern. Hereditary hemochromatosis causes the body to store excess iron, and about 1 in 10 White people carry the most common gene variant linked to it, although far fewer develop the disease[1]. Consistent with this, multivitamins for men often contain less iron or none at all[1].
What have multivitamin trials in men actually found?
The best evidence comes from the Physicians' Health Study II, which followed 14,641 male physicians for a median of 11.2 years. Men taking a daily multivitamin had a modest, statistically significant 8% reduction in total cancer compared with placebo[2]. According to the NIH, the same trial found no benefit for cardiovascular disease or cognitive decline[5].
That's a real but small effect from one trial of a standard, moderate-dose multivitamin. It's also why the USPSTF, looking at all the evidence together, concluded there wasn't enough to recommend multivitamins for preventing cancer or heart disease[4].
Are high-dose "men's performance" formulas better?
More is not better, and sometimes it's worse. The clearest example is the SELECT trial, which tested vitamin E and selenium for preventing prostate cancer. Men taking high-dose vitamin E alone had a 17% higher risk of prostate cancer than those on placebo[3].
A few other upper limits worth knowing:
- Zinc: men need 11 mg a day; the upper limit is 40 mg, and long-term intake of 50 mg or more can interfere with copper[6].
- Iron: the upper limit for adults is 45 mg a day[1].
If a men's formula lists nutrients at many times the Daily Value, that's a reason for caution, not confidence. It matters even more if you also take other supplements (see taking a multivitamin with other supplements).
What should a men's multivitamin label look like?
- Iron: low or none, unless your doctor says otherwise.
- Doses: mostly around 100% of the Daily Value, not 1,000%+.
- Vitamin D and B12: useful to see, especially as you get older.
- No proprietary "performance blends" with undisclosed amounts.
- Independent testing, since the FDA doesn't approve supplements before sale.
The honest summary
- Most men don't need supplemental iron.
- A moderate daily multivitamin showed a small cancer benefit in one large trial in men, but no heart benefit.
- Megadoses aren't better; high-dose vitamin E increased prostate cancer risk in SELECT.
- Diet, activity and sleep matter far more than any men's formula.
Over 50? Read multivitamins after 50.
Our option
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Two gummies provide nine essential vitamins plus zinc and iodine, in orange, peach and strawberry flavors. They're non-GMO and gluten-free, the suggested use is 2 gummies once daily, and, like every Vita Globe product, they're tested by an independent third-party lab. It doesn't include iron, which most men don't need to supplement.
Frequently asked questions
Do men need a different multivitamin than women?
The main difference is iron. Men need 8 mg a day versus 18 mg for women 19 to 50[1], so a unisex or men's formula with little or no iron usually suits men better.
Is it bad for men to take a multivitamin with iron?
Not necessarily, but most men don't need it. If you have hemochromatosis or a family history of it, talk to your doctor before taking any iron[1].
Do multivitamins boost testosterone or energy?
There's no good evidence that a standard multivitamin raises testosterone. B vitamins help turn food into energy, but they won't feel like a boost unless you were low to begin with.
Should men over 50 take a multivitamin?
It can help cover vitamin B12, which becomes harder to absorb from food with age[5]. See our guide to multivitamins after 50 for details.
Sources
- Office of Dietary Supplements, National Institutes of Health. Iron: Fact Sheet for Health Professionals. Accessed September 27, 2026. ods.od.nih.gov
- Gaziano JM, Sesso HD, Christen WG, et al. Multivitamins in the prevention of cancer in men: the Physicians' Health Study II randomized controlled trial. JAMA. 2012;308(18):1871. doi:10.1001/jama.2012.14641
- Klein EA, Thompson IM, Tangen CM, et al. Vitamin E and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention Trial (SELECT). JAMA. 2011;306(14):1549. doi:10.1001/jama.2011.1437
- US Preventive Services Task Force; Mangione CM, Barry MJ, et al. Vitamin, mineral, and multivitamin supplementation to prevent cardiovascular disease and cancer: US Preventive Services Task Force recommendation statement. JAMA. 2022;327(23):2326. doi:10.1001/jama.2022.8970
- Office of Dietary Supplements, National Institutes of Health. Multivitamin/mineral Supplements: Fact Sheet for Health Professionals. Updated July 17, 2024. ods.od.nih.gov
- Office of Dietary Supplements, National Institutes of Health. Zinc: Fact Sheet for Health Professionals. Accessed September 27, 2026. ods.od.nih.gov
About the Vita Globe Editorial Team
The Vita Globe Editorial Team researches and writes our wellness content, working from peer-reviewed research, systematic reviews and guidance from bodies such as the NIH and the FDA. We cite our sources inline and update articles when the evidence changes.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is for informational purposes only and is not a substitute for medical advice. Talk to your healthcare provider before starting any new supplement, particularly if you are pregnant, nursing, taking medication, or caring for a child.
