Review of Optimum Nutrition Opti-Men

Is the Optimum Nutrition Opti-Men multivitamin one of the best supplements for men?

Rating: 4.5 (out of 5)

Welcome to this review of the Optimum Nutrition Opti-Men multivitamin product. Is it the best multivitamin or one of the best supplements for men on the market? That is debatable, but it is certainly one of the top multivitamins on the market today.

This multivitamin especially engineered or manufactured for men is made by the well respected, highly acclaimed supplement manufacturer Optimum Nutrition who is subsidiary of Kilkenny, Ireland-based Glanbia. This company is well known for its Gold Standard Whey protein powder but they actually make a full range of supplement products.

To see more reviews of the Optimum Nutrition products in this site, go here. Let’s now get into this offering by Optimum Nutrition and their Opti-Men multivitamin supplement product.

Opti-Men Multi-Vitamin Product Features

Before we talk about the product features, let’s talk about the purity of the Opti-Men product. Due to the massive degree of supplement fraud in the supplement industry, the government has begun to look closer at the supplement industry as a whole. As a natural consequence, many coNSF Certified for Sportmpanies are now seeking what is called the NSF Certified for Sport registered GMP certification.

What is that? It is a mark of distinction that sets some supplement companies apart. Supplement manufacturers like BSN, Optimum Nutrition, MusclePharm and Dymatize have this certification.

Consumers are now much more aware of this and Optimum Nutrition has happily made it known to their prospects. Their entire in-house manufacturing operation has been registered under the NSF International, The Public Health and Safety Company, Good Manufacturing Practices (GMP) Program.

These standards ensure purity of raw nutrients, manufacturing processes, employee training so as to maintain cleanliness standards. Ongoing audits are performed in order to ensure continued compliance with the regulations. Companies who earn this designation have displayed a clear and consistent emphasis on quality throughout the manufacturing process.

Pharmaceutical cGMP compliance is the highest standard possible and only two supplement companies have met this standard that I know of, Xtend-Life and Douglas Laboratories.

Let’s talk about the product’s nutrient profile.

Opti-Men has four of what Optimum Nutrition calls “blends” including the amino blend, viri-blend, phyto-blend, and the enzy-blend. Let’s briefly take them one at a time.

The amino blend has eight vital free-form acids totaling 800mg including Arginine, Glutamine and other branched chain amino acids or BCAAs. These amino acids are the the building blocks of lean muscle growth and are indispensable for both muscle growth but also for repair.

The viri-blend has 525mg of eight botanicals and marine concentrates including ginseng, one of the most potent super foods in the world, saw palmetto, damiana, and ginkgo biloba. Damiana and ginseng help the male sex drive and ginkgo biloba improves blood flow and mental function. Most multivitamins don’t have herbal extracts like this.

the phyto-blend has 240mg of vegetable and fruit extracts with some of the more notable ones being kale powder, kiwi fruit powder, carrot, elderberry, garlic, and many others.

The enzy-blend has 50mg various other digestive enzymes.

Opti-Men comes with vitamins and minerals including the B-complex, which is a catalyst for energy. All in all it comes with over 75 active ingredients.

One of the few negatives to this multivitamin for men is that it comes with pharmaceutical glaze versus enteric coating. Why is this important? Well, most pharmaceutical drugs have enteric coating. Enteric coating is an inert substance that protects the vital nutrients from the harsh acidic environment of human stomach. It protects them until they pass from the stomach into the duodenum where they can then be released  into the bloodstream. Pharmaceutical glaze is a poorer substitute than enteric coating. Very few vitamin manufactures use enteric coating as it’s expensive. This is a negative element to this overall superb multivitamin.

The ON Opti-Men multivitamin product is available with the 180 capsule version or the 360 tablet versions.

How Much is Opti-Men?

The Opti-Men price ranges vary depending on the tablet option. See below those price ranges as of today, December 21st, 2023.

Does Opti-Men Come With a Guarantee?

Like all products from Optimum Nutrition, they do guarantee their Opti-Men product, but they defer to thguaranteee retailer selling it as to their product guarantee. Unless something is terribly wrong with the product, they will defer. Thus, one of the reasons why I recommend buying from Amazon, if you should so choose, is due to 1) their nine straight years of receiving the best customer service award and 2) due to their guarantee.

Opti-Men Consumer Reviews

This is a popular multivitamin in the marketplace with many thinking it’s the best multivitamin for men. On Amazon, this product has 1,001 reviews from just one vendor with an average score of 4.4 out of 5.0 stars. On a popular bodybuilding site, it scores an average score of 9.2 out of 10.00 with 1,245 reviews. As you can clearly see, it is a well vetted product. Below are a few reviews of it for customer feedback is more powerful than marketing hype.

Great Multi
By Chris on November 20, 2013
Size Name: 180 Amazon Verified Purchase

Weightlifter Perspective: this is a good multi that I prefer to Animal Paks (both because of results and fewer/smaller pills). I’m not sure, but I think it may be at least partly responsible for particularly ferocious boners. I’m around 220 lb and I take 2/3 of the recommended dose. Would rate 5 stars but I’ve read the 1 star reviews and am slightly worried that this product will kill me. But, ferocious boners.

Perfect Multivitamin for Men BUT TAKE CAUTION

By Goku on March 20, 2012
Size Name: 180 Amazon Verified Purchase

CAUTION: This product covers all that you need and a little more, in fact, I’d say taking the recommended dose (3 a day) is big-time overkill. One a day is more than enough, you have to take into account that you’ll be getting plenty of the included nutrients in your meals. Even if you are a gym rat, one pill a day in conjunction with 4-6 meals a day and protein shakes is perfect. Also take note of the vitamin A, D, E, and K concentrations. You will be getting high doses if you take 3 pills, and that can actually be very dangerous. These are fat-soluble vitamins and you’re body will store these in your liver if you take too much. So although you feel great and energized, and see no harm in taking 3, 20 years down the road you might run into some serious medical problems. You should always drink plenty of water, but make sure you definitely do so with this supplement, you want to minimize any stress on your body, and drinking plenty of water will do the trick. Also, do not worry if you pee highlighter yellow, it is normal with this product because it contains Vitamin B2 (also known as riboflavin) this is water soluble and any excess will simply be flushed out through your system. Initially I was worried, because I thought I wasn’t drinking enough water and hence my pee was yellow, but after researching and talking to a friend of mine who is a physician, my mind was put to ease. He laughed and told me it was the vitamin B2 and it was normal! Regardless, drink plenty of water. This is the perfect product for men, as a daily supplement, simply for a healthy lifestyle or for working out and getting big. Whichever your case may be, I strongly advise taking only 1 pill daily.


  • All Optimum Nutrition products are produced in a GMP-compliant facility
  • Optimum Nutrition is widely considered to be one of the best supplement companies in the world with a wide range of products including sports nutritional supplements and generic supplements like fish oil
  • This product has a goodly number of excellent reviews and testimonials
  • It is a popular product in the marketplace
  • It has a nice blend of enzymes and medicinal or botanical herbs in its ingredient profile


  • Its coating is pharmaceutical glaze and is not as robust as others on the market with other multivitamin products
  • It seems to have been designed in mind for bodybuilders than general health enthusiasts

Where Can I Buy Opti-Men?

ON Opti-Men MultivitaminToday, December 21st, 2023, you can buy it here. The Optimum Nutrition Opti-Men multivitamin is among the best vitamin products available.

The conclusion I give is that it is not as expensive as the Xtend-Life multivitamin for men, but the Xtend-Life product is better due to its pharmaceutical-grade quality enteric coating and customer acceptance.

That is not to say this is an inferior product. It isn’t. It is one of the top five best multivitamin for men in the world. It is a high quality product.

I hope this review of the Optimum Nutrition Opti-Men multivitamin has been useful to you.

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