Optimum Nutrition Opti-Men Review — Is It Worth It?

Optimum Nutrition Opti-Men is the premium multivitamin in this comparison, and the formula is genuinely comprehensive — including amino acid additions that make it one of the most complete daily supplements available for active men.

What Is It?

Opti-Men is a three-a-day sports multivitamin that ON has positioned as a complete daily performance nutrition supplement. It's been a flagship product in their range for over a decade and is widely considered the benchmark for athlete multivitamins.

Ingredients & Nutrition

Per 3-tablet serving: vitamin D3 (1500 IU — higher than competitors), vitamin C (300mg), vitamin E (67mg), full B vitamin complex at above-RDA levels, zinc (15mg), magnesium (80mg), plus an amino acid blend (1g arginine, 200mg glutamine, 200mg BCAAs) and a botanical blend (green tea, grapeseed, ginkgo biloba, saw palmetto, BioPerine).

The three-tablet serving at clinical doses is more comprehensive than anything in this comparison. The BioPerine (black pepper extract) is included to improve absorption of fat-soluble vitamins — a genuinely useful addition. The amino and botanical blends are at modest doses, but they're additional to a full vitamin and mineral matrix.

Taste & Mixability

Three tablets daily — best taken with a meal. The tablet size is larger than most, and some people struggle with the three-tablet serving. The coating prevents any unpleasant taste.

Effectiveness

The higher vitamin D3 dose (1500 IU), elevated zinc, comprehensive B vitamin dosing, and BioPerine absorption enhancer collectively produce a more complete and effective daily multivitamin than budget alternatives. The amino acid blend is modest but adds incremental value.

For serious athletes training 5–6 days per week, the comprehensive micronutrient coverage at clinical doses is more relevant than for recreational gym-goers — the higher training load increases micronutrient demand.

Value for Money

At £19.99 for 90 tablets (30 servings at 3 tablets), you're paying approximately £0.67 per serving. That's twice Bulk's price. The premium is justified by the more comprehensive formula, BioPerine inclusion, and ON's consistent quality standards. However, for most gym-goers' nutritional needs, Bulk Complete Multivitamin at £0.33 does the job adequately.

Verdict

Opti-Men earns its 8 through genuine formula superiority — not just marketing. The higher vitamin D3, BioPerine inclusion, and comprehensive amino/botanical additions make it the most complete multivitamin reviewed. For high-volume athletes who want to take one product seriously, Opti-Men is the right choice. For everyone else, saving £0.34 per serving with Bulk is sensible.

Rating: 8/10