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Optimum Opti-Men
💪 38 active ingredients — 13 vitamins + 9 minerals + BCAAs + botanicals
🔬 1000mg BCAA blend (L-leucine, L-isoleucine, L-valine) + 200mg L-glutamine per dose
☀️ Vitamin D 10µg (200% NRV) + Vitamin C 225mg (281% NRV) + Zinc 12mg (120% NRV)
🌿 Ginger, olive leaf, green tea, lutein, alpha lipoic acid — phytonutrient matrix
👨 Designed specifically for active men — 3 tablets/day — 90 or 180 tablets
What is Optimum Nutrition Opti-Men®?
Optimum Nutrition Opti-Men® is a high-potency multivitamin designed specifically for active men — formulated by Optimum Nutrition, the brand behind the world's best-selling protein powder, Gold Standard 100% Whey. Each 3-tablet daily dose delivers 38 active ingredients across four distinct functional matrices: a complete vitamin and mineral complex, a 1000mg branched-chain amino acid blend, a 200mg L-glutamine dose, and a phytonutrient complex of botanical and antioxidant extracts.
The Opti-Men® formula is built on the premise that men who train regularly have systematically higher micronutrient demands than sedentary individuals — elevated energy turnover, increased sweat-driven mineral losses, greater oxidative stress from exercise and higher protein metabolism all create micronutrient requirements that standard RDA-level multivitamins fail to address. Opti-Men® provides B vitamins at 300 to 400% of the NRV, vitamin C at 281% and chromium at 300% — doses calibrated for the metabolic demands of active individuals rather than for sedentary baseline maintenance.
The BCAA and L-glutamine inclusion is particularly distinctive: Opti-Men® is one of the few multivitamins on the market to include a meaningful amino acid dose (1000mg BCAA blend + 200mg L-glutamine) directly in the tablet formula — adding a marginal but genuine protein-anabolic dimension to what would otherwise be a purely micronutrient product.
The phytonutrient matrix — ginger root extract, olive leaf extract, green tea leaf extract, rutin, citrus bioflavonoids, alpha lipoic acid, inositol, choline bitartrate, lutein and boron — provides antioxidant, anti-inflammatory and cognitive support compounds that address the broader health demands of an active lifestyle beyond the purely nutritional vitamin and mineral dimension.
Tablets are coated with a plant-based (HPMC) coating — not gelatin — making Opti-Men® suitable for vegetarians. Formats available: 90 tablets (30-day supply at 3 tablets/day) and 180 tablets (60-day supply).
38 ingredients. One tablet routine. Built for men who train.
| Packaging | 90 Tabs or 180 Tabs |
| Brand | Optimum Nutrition |
💪 13 vitamins at high doses — energy metabolism and fatigue reduction
The vitamin matrix in Opti-Men® is formulated at doses significantly above standard RDA levels throughout the B-vitamin complex. Niacin (B3) at 54mg (337% NRV), vitamin B6 at 5.4mg (386% NRV), vitamin B12 at 9µg (360% NRV), biotin at 180µg (360% NRV), pantothenic acid at 18mg (300% NRV) and riboflavin at 4.5mg (321% NRV) collectively cover the full spectrum of EU-authorised health claims for contributing to normal energy-yielding metabolism and the reduction of tiredness and fatigue — addressing the increased B-vitamin metabolic demand of physically active men.
🛡️ Immune system support — 8 EU-authorised immune nutrients
The EU-authorised contributors to normal immune system function represented in Opti-Men® include vitamins A, C, D, B6, B12, folic acid, copper and selenium — all eight simultaneously covered in a single 3-tablet daily dose. Vitamin C at 225mg (281% NRV) provides both immune support and antioxidant protection from exercise-induced oxidative stress. Zinc at 12mg (120% NRV) additionally contributes to normal testosterone levels in the blood — directly relevant to male athletic performance and recovery.
🧠 Zinc + vitamin B5 — cognitive function and mental performance
Zinc and pantothenic acid (vitamin B5) both carry EU-authorised health claims for contributing to normal cognitive function and normal mental performance respectively. At 12mg of zinc (120% NRV) and 18mg of pantothenic acid (300% NRV), Opti-Men® provides both at meaningful doses — relevant to the focus, motivation and decision-making demands of both training and professional life.
🔋 1000mg BCAA blend — the amino acid dimension of a multivitamin
Opti-Men® includes a 1000mg blend of branched-chain amino acids (L-leucine 400mg, L-isoleucine 200mg, L-valine 200mg) alongside 200mg of L-glutamine per 3-tablet dose. While these doses are smaller than dedicated amino acid supplements, their inclusion in a multivitamin formula reflects Optimum Nutrition's design philosophy of creating a genuinely comprehensive daily supplement that covers multiple active dimensions simultaneously. L-leucine is the primary activator of mTOR-driven muscle protein synthesis; L-glutamine supports immune function and muscle glycogen metabolism.
🌿 Phytonutrient and antioxidant matrix — 10 botanical and functional compounds
The phytonutrient matrix adds a dimension entirely absent from standard vitamin and mineral supplements: ginger root extract (anti-inflammatory, digestive support), olive leaf extract (polyphenol antioxidants), green tea leaf extract (catechins, antioxidant), rutin (bioflavonoid antioxidant, vascular support), citrus bioflavonoids (vitamin C synergists), alpha lipoic acid (universal antioxidant, both water and fat-soluble), inositol (cell membrane signalling), choline bitartrate (acetylcholine precursor, cognitive support), lutein (eye health, retinal protection) and boron (bone and testosterone metabolism support).
🎯 Goal guide
🏋️ Mass gain and strength training: 3 tablets/day with the main meal. BCAAs and L-glutamine add an amino acid complement; zinc and B-vitamins support the hormonal and metabolic environment for muscle growth.
🔥 Weight loss / cutting: 3 tablets/day. High-dose B-vitamins support energy metabolism during caloric restriction; vitamin D, zinc and magnesium support hormonal balance when overall nutritional intake is reduced.
⚖️ Daily active performance: 3 tablets/day. Comprehensive micronutrient, amino acid, antioxidant and phytonutrient coverage for the daily physical and cognitive demands of an active man.
Serving suggestion
Take 3 tablets per day with food. Do not take on an empty stomach. Do not combine with other products containing green tea extract. Do not exceed the recommended daily dose of 3 tablets.
Best times to take it
🍳 With the main meal (primary recommendation)
Optimum Nutrition recommends taking all 3 tablets with food. The fat-soluble vitamins (A, D, E, K) in Opti-Men® are absorbed significantly more efficiently alongside dietary fat. The green tea extract warning (do not take on an empty stomach) makes meal-time consumption additionally important. The main meal of the day — typically lunch or dinner — is the optimal timing for the full 3-tablet dose.
🌅 Split across breakfast and lunch — an alternative protocol
Some users prefer splitting the 3-tablet dose: 2 tablets with breakfast and 1 tablet with lunch — distributing the water-soluble vitamin load (B vitamins, vitamin C) across two meal-time absorption windows rather than one. This protocol remains compliant with the green tea extract warning (both administrations are with food) and avoids the potential for any urinary excretion of excess water-soluble vitamins from a single large dose.
📅 Every day — including rest days
Fat-soluble vitamin tissue levels (A, D, E, K) and mineral status are maintained through consistent daily intake. B-vitamin and vitamin C plasma levels benefit from consistent daily dosing. Opti-Men® is a daily comprehensive supplement — the benefit is cumulative and daily consistency is the primary compliance requirement.
Supply duration guide
| Format | Tablets | Duration at 3/day |
|---|---|---|
| Standard | 90 tablets | 30 days (1 month) |
| Value format | 180 tablets | 60 days (2 months) |
Full ingredient list
Bulking agent (microcrystalline cellulose), branched chain amino acid blend (L-leucine, L-isoleucine, L-valine), calcium carbonate, L-ascorbic acid (vitamin C), L-glutamine, magnesium oxide, anti-caking agents (silicon dioxide, fatty acids, magnesium salts of fatty acids), D-alpha-tocopheryl acetate (vitamin E), coating (glazing agent (hydroxypropyl methyl cellulose), thickener (glycerol)), nicotinamide (vitamin B3), stabiliser (cross-linked sodium carboxymethyl cellulose), alpha lipoic acid, rutin, calcium D-pantothenate (vitamin B5), ginger root extract (Zingiber officinale Rosc.), olive leaf extract (Olea europaea L.), green tea leaf extract (Camellia sinensis (L.) Kuntze), citrus bioflavonoids, sodium borate, zinc oxide, inositol, choline bitartrate, pyridoxine hydrochloride (vitamin B6), L-selenomethionine, thiamin hydrochloride (vitamin B1), cupric sulphate, cholecalciferol (vitamin D3), riboflavin (vitamin B2), retinyl acetate (vitamin A), chromium III chloride, lutein, phylloquinone (vitamin K1), cyanocobalamin (vitamin B12), chromium picolinate, sodium molybdate, D-biotin, potassium iodide, pteroylmonoglutamic acid (folic acid).
Key formula matrix overview
| Matrix | Key ingredients | Primary role |
|---|---|---|
| Vitamins (13) | A, D3, E, K1, C, B1, B2, B3, B5, B6, B12, biotin, folic acid | Energy metabolism, immunity, fatigue reduction |
| Minerals (9) | Ca, Mg, Zn, Cu, Se, Cr, Mo, I, B | Muscle function, hormonal balance, immune support |
| Amino acids | BCAA 1000mg (Leu 400/Ile 200/Val 200) + L-glutamine 200mg | Protein synthesis support, immune and recovery |
| Botanicals & antioxidants | Ginger, olive leaf, green tea, rutin, citrus bioflavonoids, ALA, inositol, choline, lutein | Antioxidant, anti-inflammatory, cognitive, ocular |
Allergens
No major allergens declared. Tablet coating uses HPMC (plant-based) — no gelatin. Suitable for vegetarians. Always refer to the current product label for the most up-to-date allergen information.
Product characteristics:
- 38 active ingredients per 3-tablet daily dose
- High-potency vitamin and mineral complex
- BCAA + L-glutamine amino acid matrix
- Phytonutrient and botanical complex
- Plant-based HPMC tablet coating — suitable for vegetarians
- Not suitable for women, under 18s, pregnant or breastfeeding women
- Green tea extract: do not take on empty stomach
Active ingredient profile per daily dose (3 tablets)
| Vitamin | Per 3 tablets | % NRV |
|---|---|---|
| Vitamin A | 400µg | 50% |
| Vitamin D3 | 10µg | 200% |
| Vitamin E | 30mg | 250% |
| Vitamin K1 | 75µg | 100% |
| Vitamin C | 225mg | 281% |
| Thiamine (B1) | 4.0mg | 364% |
| Riboflavin (B2) | 4.5mg | 321% |
| Niacin (B3) | 54mg | 337% |
| Vitamin B6 | 5.4mg | 386% |
| Folic acid | 90µg | 45% |
| Vitamin B12 | 9.0µg | 360% |
| Biotin | 180µg | 360% |
| Pantothenic acid (B5) | 18mg | 300% |
| Mineral | Per 3 tablets | % NRV |
|---|---|---|
| Calcium | 120mg | 15% |
| Magnesium | 80mg | 21% |
| Zinc | 12mg | 120% |
| Copper | 2.0mg | 200% |
| Selenium | 30µg | 55% |
| Chromium | 120µg | 300% |
| Molybdenum | 80µg | 160% |
| Iodine | 100µg | 67% |
| Boron | 2.0mg | — |
| Amino acids & botanicals | Per 3 tablets |
|---|---|
| BCAA blend total | 1000mg |
| — L-leucine | 400mg |
| — L-isoleucine | 200mg |
| — L-valine | 200mg |
| L-glutamine | 200mg |
| Alpha lipoic acid | 25mg |
| Ginger root extract | 20mg |
| Olive leaf extract | 20mg |
| Green tea leaf extract | 20mg |
| Rutin | 20mg |
| Choline bitartrate | 10mg |
| Inositol | 10mg |
| Citrus bioflavonoids | 7.0mg |
| Lutein | 500µg |
Formats disponibles
| Format | Tablets | Duration at 3/day |
|---|---|---|
| Standard | 90 tablets | 30 days |
| Value format | 180 tablets | 60 days |
Q1 — Why is Opti-Men® specifically designed for men and not suitable for women?
The Opti-Men® formula is calibrated around the specific micronutrient requirements and metabolic characteristics of active adult men. The zinc dose (12mg, 120% NRV) is formulated for men's testosterone metabolism — women require lower zinc intake and higher zinc supplementation in women can interfere with copper balance. The iron content is minimal — reflecting the fact that men do not have the monthly iron losses of premenopausal women and do not require supplemental iron. The BCAA blend is dosed around male muscle mass and protein turnover rates. For women, Optimum Nutrition produces dedicated women's multivitamin formulas with different micronutrient ratios. Using Opti-Men® as a woman would expose them to inappropriate zinc, boron and other doses — which is why the "not suitable for women" declaration is a genuine formulation concern, not a marketing distinction.
Q2 — Why does Opti-Men® contain BCAAs — isn't that unusual in a multivitamin?
Yes — most multivitamins contain only vitamins and minerals. Optimum Nutrition's design philosophy for Opti-Men® was to create a genuinely comprehensive daily supplement for active men, not just a micronutrient top-up. The inclusion of 1000mg of BCAAs (leucine, isoleucine, valine) and 200mg of L-glutamine reflects the role these amino acids play in muscle protein synthesis, immune function and recovery — directly relevant to the active man demographic. While 1000mg of BCAAs is a smaller dose than a dedicated BCAA supplement (typically 5 to 10g), the inclusion adds a meaningful amino acid contribution to the daily micronutrient foundation without requiring an additional separate product.
Q3 — Why should I not take Opti-Men® on an empty stomach?
The green tea leaf extract in Opti-Men® contains EGCG (epigallocatechin-3-gallate) — the primary bioactive catechin in green tea. Consuming concentrated green tea extract on an empty stomach is associated with gastrointestinal discomfort (nausea, stomach upset) and, at high doses, with elevated liver enzyme levels in susceptible individuals. This is a well-documented effect of concentrated green tea extract supplements, which is why the EFSA maximum safe intake of 800mg EGCG per day and the "do not take on empty stomach" warning are both mandatory declarations in the EU for products containing green tea extract. At the 2mg of EGCG per dose in Opti-Men®, the quantity is very small — but the recommendation to take with food remains important.
Q4 — Can I take Opti-Men® alongside other Optimum Nutrition supplements such as Gold Standard 100% Whey?
Yes. Opti-Men® contains no active compounds that interact with Gold Standard 100% Whey or other standard sports nutrition supplements (creatine, pre-workout, protein bars). The combination of Opti-Men® (micronutrients, amino acids, botanicals) with Gold Standard 100% Whey (fast-absorbing protein) is the most common and natural pairing among ON's customer base — addressing both the micronutrient and macronutrient dimensions of athletic nutrition simultaneously. The only supplement categories to approach with caution are additional vitamin and mineral products (to avoid doubling of specific nutrients) and additional green tea extract products (to avoid EGCG accumulation above 800mg/day).
Q5 — Which format should I choose — 90 or 180 tablets?
The formula and serving size are identical in both formats. The 90-tablet format (30-day supply at 3 tablets/day) is the appropriate starting point for first-time users. The 180-tablet format (60-day supply) provides a meaningfully lower cost per tablet and is the preferred choice for athletes who have established Opti-Men® as their daily multivitamin — at 3 tablets per day, the 180-tablet format provides 2 months of uninterrupted supply, reducing re-ordering frequency.