Multivitamin

All Supplements

Evidence summary

Multivitamin has moderate evidence in this guide. The reference dose is 1 tablet daily, with timing listed as with food. Supplements should support a sound diet and training plan, not replace them.

• Insurance against nutritional gaps
• Convenient single supplement

What Is a Multivitamin?

A multivitamin is a supplement containing a broad range of vitamins and minerals in a single tablet, capsule, or powder. It is designed to fill nutritional gaps in your diet rather than provide a therapeutic dose of any single nutrient. Think of it as insurance — it covers the basics but does not replace eating well.

How It Works

Your body requires dozens of micronutrients for everything from energy production and immune function to muscle repair and hormone synthesis. A multivitamin provides a baseline level of these nutrients to help ensure you are not deficient in anything critical. It is particularly useful if your diet is limited in variety, you are in a calorie deficit, or you follow a restrictive eating pattern.

What the Research Says

The evidence for multivitamins is mixed but reasonable. Large-scale studies have not shown dramatic benefits for the general population who eat a balanced diet. However, research does support their use for people with nutritional gaps — which, in practice, includes a lot of people. Studies in athletes have found that intense training increases micronutrient needs, and many active individuals fall short on key vitamins and minerals like vitamin D, magnesium, and zinc.

The bottom line: a multivitamin will not transform your health or performance, but it provides a sensible safety net for a few pence a day.

What to Look For

Not all multivitamins are created equal. Avoid products with excessive doses of fat-soluble vitamins (A, D, E, K), which can accumulate to harmful levels. Look for products that use bioavailable forms of key nutrients — for example, methylfolate instead of folic acid, and vitamin D3 instead of D2. If you are male or post-menopausal, choose an iron-free formula unless your doctor has identified a deficiency.

Who Should Take One

People who eat a limited variety of foods, are in a calorie deficit (cutting phase), follow a vegan or vegetarian diet, or simply want a cheap insurance policy against gaps. Athletes with high training volumes may also benefit, as exercise increases micronutrient turnover.

Who Probably Does Not Need One

If you eat a varied diet rich in fruits, vegetables, whole grains, lean protein, and dairy (or fortified alternatives), you may be getting everything you need from food. A multivitamin will not hurt, but it may not add much either.

Vegan?

Most multivitamins are available in vegan-friendly formulations. Check for plant-based capsules (HPMC) and ensure the vitamin D is D3 from lichen rather than lanolin (sheep’s wool). Vegan-specific multivitamins often include higher doses of B12, iron, and zinc — nutrients that vegans are more likely to be low in.

Where to Buy

• Bulk Complete Multivitamin — from £6.99
• Amazon — Nutravita Multivitamin — from £9.99
• Myprotein Alpha Men / Active Woman — from £10.99

Multivitamin: common questions

What is multivitamin used for?

Multivitamin is commonly considered for insurance against nutritional gaps, convenient single supplement, may benefit those with restricted diets. The evidence rating in this guide is moderate.

When should I take multivitamin?

The practical timing used in this guide is with food. Consistency and the total daily dose are often more important than a narrow timing window.

How much multivitamin should I take?

The reference dosage in this guide is 1 tablet daily. Individual needs vary, so check the product label and speak to a qualified healthcare professional if you have a medical condition, take medication, are pregnant, or are unsure.

Is multivitamin vegan friendly?

This form of multivitamin can be vegan friendly, but check the capsule, flavouring, and manufacturing details on the specific product.

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