DAILY SUPPORT
Everyday nutrient support
Opti-Men and Opti-Women bring together a broad selection of vitamins and minerals in convenient daily formulas for active adults.
Vitamins & Magnesium made simple
Discover how targeted multivitamins and magnesium can support your everyday active routine.
ENERGY & FATIGUE
Support everyday energy
Selected B vitamins and magnesium contribute to normal energy-yielding metabolism and the reduction of tiredness and fatigue.*
MUSCLE FUNCTION
Support normal muscle function
Magnesium contributes to normal muscle function, electrolyte balance and the normal functioning of the nervous system.**
*Vitamins B1, B2, B3, B5, B6 and B12 contribute to normal energy-yielding metabolism. Vitamins B2, B3, B5, B6 and B12 and magnesium contribute to the reduction of tiredness and fatigue. **Magnesium contributes to normal muscle function, electrolyte balance and the normal functioning of the nervous system.
Find your daily support
Choose targeted multivitamin or magnesium support to fit your routine.
Premium magnesium blend
Magnesium Glycinate+
188 mg of magnesium per serving from glycinate, malate and citrate, with no hidden magnesium sources.
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Daily support for men
Opti-Men
A daily multivitamin with essential vitamins, minerals, amino acids and plant extracts, designed for active men.
Shop Opti-Men
Daily support for women
Opti-Women
A targeted daily multivitamin with essential vitamins and minerals, including iron and folic acid, designed for active women.
Shop Opti-WomenTHE OPTIMUM NUTRITION DIFFERENCE
Why choose Optimum Nutrition?
Targeted daily formulas, transparent ingredients and more than 40 years of sports nutrition expertise.
Purpose-built daily support
Choose broad multivitamin support or a focused magnesium formula to suit your routine.
Targeted multivitamin formulas
Opti-Men and Opti-Women offer broad nutrient coverage designed for active men and women.
Transparent magnesium sources
Every declared milligram comes from glycinate, malate and citrate, with no hidden magnesium sources.
Trusted sports nutrition expertise
Backed by more than 40 years of experience and trusted in over 90 countries.
FIND YOUR BEST FIT Not sure which product is right for you? Compare the formulas and their key benefits side by side. Compare options Collapse comparison
Compare the vitamins & magnesium range
Find the daily formula that best matches the kind of support you are looking for.
| Compare |
TARGETED MAGNESIUM
Magnesium Glycinate+
|
FOR ACTIVE MEN
Opti-Men
|
FOR ACTIVE WOMEN
Opti-Women
|
|---|---|---|---|
| Best for | Active adults looking for focused daily magnesium support | Active men looking for broad daily micronutrient support | Active women looking for broad daily micronutrient support |
| Formula type | Targeted mineral supplement | Men's multivitamin | Women's multivitamin |
| Key formula | 188 mg magnesium Glycinate, malate and citrate |
Vitamins, minerals, amino acids and plant extracts | 23 vitamins and essential minerals Including 14 mg iron and 400 µg folic acid |
| Primary support | Muscle function, energy metabolism, electrolyte balance and reduced tiredness and fatigue* | Immune function, energy metabolism, cognitive function and reduced tiredness and fatigue* | Energy metabolism, immune function, blood formation and muscle function* |
| When to take | Any time of day. Consistency matters most | Daily with food | Daily with food |
| Daily serving | 2 capsules | 3 tablets | 2 tablets |
| Pack options | 90 capsules 45 servings |
90 or 180 tablets 30 or 60 servings |
60 or 120 tablets 30 or 60 servings |
| Shop products | Shop magnesium | Shop Opti-Men | Shop Opti-Women |
TARGETED MAGNESIUM
Magnesium Glycinate+
- Best for
- Active adults looking for focused daily magnesium support
- Formula type
- Targeted mineral supplement
- Key formula
- 188 mg magnesium
Glycinate, malate and citrate - Primary support
- Muscle function, energy metabolism, electrolyte balance and reduced tiredness and fatigue*
- When to take
- Any time of day. Consistency matters most
- Daily serving
- 3 capsules
- Pack options
- 90 capsules
30 servings
FOR ACTIVE MEN
Opti-Men
- Best for
- Active men looking for broad daily micronutrient support
- Formula type
- Men's multivitamin
- Key formula
- Vitamins, minerals, amino acids and plant extracts
- Primary support
- Immune function, energy metabolism, cognitive function and reduced tiredness and fatigue*
- When to take
- Daily with food
- Daily serving
- 3 tablets
- Pack options
- 90 or 180 tablets
30 or 60 servings
FOR ACTIVE WOMEN
Opti-Women
- Best for
- Active women looking for broad daily micronutrient support
- Formula type
- Women's multivitamin
- Key formula
- 23 vitamins and essential minerals
Including 14 mg iron and 400 µg folic acid - Primary support
- Energy metabolism, immune function, blood formation and muscle function*
- When to take
- Daily with food
- Daily serving
- 2 capsules
- Pack options
- 60 or 120 capsules
30 or 60 servings
*Magnesium contributes to normal muscle function, normal energy-yielding metabolism, normal electrolyte balance and the reduction of tiredness and fatigue. Selected vitamins and minerals contribute to normal energy-yielding metabolism, normal immune function and the reduction of tiredness and fatigue. Zinc contributes to normal cognitive function. Iron contributes to normal formation of red blood cells and haemoglobin.
TRUSTED BY OUR CUSTOMERS
What people are saying
★★★★★
Itzhak
My favorite
My favorite and probably most comprehensive supplement. I feel great when I take it and it’s noticeable.
Opti-Men★★★★★
Hanna
Great vitamins for women
Great vitamins for women who work out. I’ve purchased them several times and have always been happy with them.
Opti-Women★★★★★
Abdelghani
Super good
Super good and top quality. Results in 3 weeks, I’ll be back in a month. Thanks!
Opti-MenMADE FOR EVERY DAY
Support that fits your routine
From everyday nutrition to active days, simple tablet and capsule formats make it easier to build consistent support into your routine.
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Your daily foundation
Support for active days
Consistency made simple
FAQ
What is the best time to take magnesium?
There is no single best time to take magnesium. The most practical
approach is to take it consistently at a time that fits your routine and to
follow the serving directions provided on pack.
What does magnesium glycinate do?
Magnesium glycinate is a form of magnesium where magnesium is bound to glycine. In Magnesium Glycinate+, it is combined with magnesium malate and citrate to provide a high-quality blend that supports daily magnesium intake.
What are the benefits of magnesium glycinate?
Magnesium glycinate is a popular form of magnesium that is gentle on
the stomach. Magnesium Glycinate+ combines glycinate with magnesium citrate and magnesium malate, providing three carefully selected forms in one convenient
formula.
Which magnesium is best for sleep?
There is no single magnesium form that is best for everyone. Magnesium glycinate is one of the most commonly searched forms in relation to sleep. Magnesium Glycinate+ includes glycinate alongside citrate and malate, while focusing on proven magnesium benefits.
Can you take too much magnesium?
Yes. Do not exceed the recommended daily serving. If you use multiple supplements, check labels for overlapping magnesium sources and seek professional advice if you are unsure about your total intake.
Which magnesium is best?
There is no single best magnesium form for everyone. Popular forms include magnesium glycinate, citrate and malate. Magnesium Glycinate+ combines all three in one formula, making it easier to include multiple premium forms in
your daily routine.
What is the difference between magnesium glycinate and magnesium bisglycinate?
Magnesium glycinate and magnesium bisglycinate are commonly used as different
names for the same magnesium form. You may see either term on pack or online, depending on the market or manufacturer.
Do multivitamins work?
The evidence is mixed. Multivitamins aren't a substitute for a balanced diet, but they can help close specific nutrient gaps, particularly for people who don't consistently get enough vitamins and minerals from food, such as those with restrictive diets, older adults, or anyone with elevated nutrient needs. Large population studies haven't shown a clear benefit for preventing major chronic diseases, but a multivitamin can still support overall nutritional adequacy when used alongside, not instead of, a varied diet.
Are multivitamins good for you?
For most healthy adults, a standard multivitamin taken at the recommended dose is considered safe and can help cover commonly under-consumed nutrients like vitamin D, B12, folate, and iron. They aren't a cure-all and won't offset a poor diet or inactive lifestyle. Anyone with a medical condition, on prescription medication, or who is pregnant or breastfeeding should check with a healthcare provider first, since nutrient needs and safe upper limits vary by life stage.
Should I take a multivitamin?
It depends on your diet, age, and health status. Multivitamins tend to be most useful for people eating a limited range of foods, following a restrictive diet (vegan, vegetarian, low-calorie), who are pregnant, older adults with reduced nutrient absorption, or who have higher nutrient demands from training or a health condition. If your diet is already varied and balanced, you may get most nutrients from food alone, a quick diet review or chat with a dietitian can help you decide, and if you do take one, choose a formula suited to your age and sex.
