Multivitamins

What are multivitamins and why should you take them?

Multivitamins are dietary supplements that combine multiple vitamins and often minerals in a single dose. Instead of taking several separate supplements, you get all your vitamins and minerals in one product. That is why they are sometimes called a multivitamin with minerals or all-in-one vitamins.

They make sense for one simple reason: micronutrient deficiency is not just a problem in developing countries. An extensive analysis of the US population found that around 31% of people were at risk of deficiency in at least one micronutrient, whereas for users of full-spectrum multivitamins, this risk was 14% compared to 40% for those who did not supplement (Bird et al., 2017).

In practical terms, this means a well-formulated multivitamin complex helps bridge the gaps that a modern diet often leaves behind.

A typical complex contains:

• Water-soluble vitamins (B-complex vitamins, vitamin C), which are not stored in the body and need to be replenished regularly.
• Fat-soluble vitamins (vitamin A, vitamin D, vitamin E, vitamin K), which the body can store for later use.
• Minerals such as magnesium, zinc, selenium, iodine, iron, or copper—the cofactors for hundreds of enzymatic reactions.

It is important to know that multivitamins are not a substitute for a varied diet. You get the most out of them if you use them to fill actual nutritional gaps. For someone with a balanced diet, the benefit is usually smaller. Therefore, the simple rule applies: a varied diet first, supplements only afterwards.

What are multivitamins good for? What do they really support?

The benefits of multivitamins are based on the effects of individual vitamins and minerals. Below, we summarise the benefits supported by authorised EFSA health claims, without exaggerating or making empty promises:

• Reduction of tiredness and fatigue: contributed to by vitamin C, vitamins B2, B3, B5, B6, B12, folic acid, magnesium, and iron.
• Normal immune system function: supported by vitamins A, C, D, B6, B12, folic acid, zinc, selenium, iron, and copper. These micronutrients are key for immune defence throughout life (Maggini et al., 2018).
• Normal energy-yielding metabolism: ensured by B-complex vitamins and magnesium, which help convert food into usable energy.
• Protection of cells from oxidative stress: contributed to by vitamins C, E, B2, zinc, copper, manganese, and selenium.
• Normal psychological function and nervous system: supported by vitamins B6, B12, C, biotin, and magnesium.
• Maintenance of normal bone health: calcium, vitamin D, vitamin K, magnesium, and zinc help keep bones strong.

On the other hand, what can you *not* expect from multivitamins? Miracles. A summary of meta-analyses confirmed benefits for cognition, mood, or blood pressure in at-risk groups, but showed no effect on overall mortality. The effect varies significantly based on age, gender, and baseline health status, which is why it is worth choosing targeted products.

Multivitamins and replenishment in practice

Clinical studies show this isn't just theory. In healthy older men, a multivitamin and multimineral supplement improved or maintained the levels of several vitamins in the blood over six months, whereas the condition in the placebo group tended to deteriorate (Michels et al., 2023). This is exactly how a quality multivitamin should work: it helps maintain adequate levels of vitamins and minerals.

Who are multivitamins for? Find your category

Needs vary according to gender, age, and lifestyle, so it makes no sense to just grab the first universal pack. In our range, you will therefore find multivitamins divided into three clear groups.

Vitamins for men

Multivitamins for men usually account for higher energy expenditure and greater muscle mass. They are often formulated without added iron (men typically get enough through their diet) and place emphasis on magnesium, zinc, and B-complex vitamins.

Zinc, among other things, contributes to maintaining normal testosterone levels in the blood and to normal fertility and reproduction, while magnesium supports normal muscle function. They are particularly suitable for active men and athletes.

Vitamins for women

Multivitamins for women respond to different physiological needs. Women of reproductive age are among the highest-risk groups in terms of micronutrient deficiency (Bird et al., 2017), and they often benefit from complexes with iron, folic acid (folate), calcium, and vitamin D. Folate contributes to maternal tissue growth during pregnancy, which is why it is one of the recommended nutrients for women planning a pregnancy or already pregnant (Rautiainen et al., 2016). If you are looking for multivitamins for pregnant women, opt for a targeted prenatal formula and always consult your doctor regarding dosage.

Tip: Explore our category of supplements for skin and hair.

All-in-one vitamins

All-in-one vitamins are the choice for anyone who doesn't want to deal with multiple products at once. This type of all-in-one multivitamin combines a wide spectrum of vitamins and minerals and often adds plant extracts, enzymes, or omega-3 fatty acids. A single product thus covers a wide spectrum of micronutrients.

When choosing, however, check the actual content of active substances: you can recognise a truly comprehensive product by its sensible amounts, not the number of items on the label.

Tip: Explore our subcategories of Vitamins for Men, Vitamins for Women, and All-in-one Vitamins and choose according to your specific goal.

How to choose a multivitamin? What to look for

As is often the case, there is no one-size-fits-all answer to the question which multivitamin is best. A good choice is based on four pillars: form, bioavailability, composition, and dosage.

Form and bioavailability

Bioavailability refers to how much of the ingested nutrient the body actually utilizes. The chemical form of minerals plays a significant role here.

Some organic forms of minerals, such as bisglycinate or citrate, tend to be gentler on the stomach and, for some elements, are absorbed better than cheap inorganic salts like oxides (Tokarczyk & Koch, 2025).

For magnesium, the dosage and how it is spread throughout the day matter more than the type of salt (Schuchardt & Hahn, 2017). Iron absorption is significantly improved by vitamin C, while calcium or phytates from cereals inhibit it (Piskin et al., 2022).

A well-formulated quality multivitamin accounts for these interactions.

Liposomal and modern forms

A liposomal multivitamin encapsulates active ingredients in phospholipid vesicles that mimic cell membranes, helping nutrients pass through the digestive tract with fewer losses. It is the most technologically advanced and also the most expensive variant. It makes sense if you care about maximum absorption or have reduced absorption capacity.

Delivery methods: tablets, capsules, effervescents, and powder

• Multivitamin tablets and capsules are the most common, practical, and have a long shelf life.
• Effervescent multivitamins are great for easy use and taste, and they also help with your hydration; just watch out for the higher sodium content in some products.
• Powder allows for flexible dosage in drinks.
• Gummies are a popular choice for anyone who dislikes swallowing tablets.

And if you prefer a natural or vegan multivitamin, look for products where vitamins are derived from fruit and plant extracts and that combine active ingredients with naturally occurring bioflavonoids.

Multivitamins for children and other groups

Multivitamins for children have lower, age-appropriate doses and most often come in the form of chewable tablets or gummies with precise dosing. Look for formulas without unnecessary additives and always respect your paediatrician's recommendations.

Athletes have specific needs—intense training increases requirements for iron, zinc, calcium, and vitamin D, especially when on a restrictive or energy-limited diet. Athletes who train mainly indoors often suffer from a vitamin D deficiency, especially in winter. Therefore, multivitamins designed for athletes can be a suitable choice.

When to take a multivitamin?

When should you take your multivitamin—morning or evening? Timing is not critical, but a few principles help with absorption and tolerance. Take complexes containing fat-soluble vitamins (A, D, E, K) with a meal containing fat, preferably your largest meal of the day. If the supplement irritates your stomach on an empty stomach, take it with food or look for gentler forms. For minerals like magnesium, splitting the dose into two parts during the day increases the total absorbed amount (Schuchardt & Hahn, 2017). And most importantly: with multivitamins, consistency is what counts, not a one-off high dose.

Safety and what to watch out for

Multivitamins are safe when the recommended dosage is followed, but more does not necessarily mean better. Some nutrients have a safe upper limit of intake, and combining multiple supplements can unexpectedly push you towards it. Folic acid deserves special attention: its excessive intake from supplements is discussed in professional literature as potentially problematic (Blumberg et al., 2018).

Unlike water-soluble vitamins, fat-soluble vitamins (especially A and D) can be stored in the body. If you take medication, are pregnant or breastfeeding, have a chronic illness, or are addressing a specific deficiency, consult your doctor or pharmacist about the choice and dosage. Supplementation makes the most sense when it corrects an actual deficiency (Peeling et al., 2023).

How to pick the best multivitamin? Summary and recommendations

For quick orientation, here is a summary of what suits whom:

• Are you an active man? Vitamins for men with magnesium, zinc, and B-vitamins.
• Are you a woman of reproductive age or planning a family? Vitamins for women with iron, folate, and vitamin D.
• Do you want one complex instead of several supplements? All-in-one vitamins.
• Do you care about maximum absorption? Liposomal multivitamin.
• Are you a vegan or want natural ingredients? Vegan or natural multivitamin from plant extracts.
• Looking for kids? Multivitamins for children in chewable tablets or gummies.
• Dislike swallowing tablets? Effervescent multivitamin, powder, or gummies.

Multivitamins are not magic pills, but a well-chosen and regularly taken quality multivitamin reliably helps replenish nutrients that are missing from your diet long-term and supports your immunity and energy. The key is in choosing a product adapted to your needs: form, dosage, and composition.

Choose your multivitamins on BodyWorld.eu based on who you are and what you need, whether it's targeted vitamins for men, women, or practical all-in-one vitamins. And don't forget to check our section on the latest deals and discounts.