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Food supplements, vitamins and minerals: how to choose a formula suited to your needs

Buying vitamin and mineral food supplements may seem straightforward… until you start comparing the doses, forms and claims displayed on the packaging. Multivitamins, vitamin D3, vitamin B12, iron and folic acid, magnesium, zinc and vitamin B6: each formula addresses a different need.

French consumers regularly make certain mistakes:

  • Confusing a high dose with a suitable formula: a high percentage of NRV does not necessarily mean that the product matches your diet or your needs.
  • Combining several products without spotting duplicate ingredients: a multivitamin may already contain iron, zinc, vitamin D or vitamin B12.
  • Underestimating the importance of the format and daily intake: tablets, vegan capsules, chewable gummies and vitamin drinks do not offer the same experience or contain the same amount of sugar.

Criteria to check before buying

1. Check the nutrients and NRVs

The NRV, or Nutrient Reference Value, is the European benchmark used when labelling vitamins and minerals. It helps you compare products, but does not replace personalised advice.

A multivitamin designed for women may combine vitamin C, vitamin D, vitamin K, iron, calcium, magnesium, zinc and B vitamins. A formula designed for men may have a different composition, including a lower iron content. Always check the amount per daily dose, rather than looking only at the total quantity in the bottle.

To meet a specific need, it is better to choose a clearly labelled formula:

  • Vitamin D3 on its own to avoid unnecessary ingredients;
  • Vitamin D3 and vitamin K2 in a combined formula, checking the doses carefully;
  • Vitamin B12 in tablet or gummy form, particularly as part of a vegan diet;
  • Iron and folic acid only if this combination suits your circumstances, and following medical advice where necessary.

2. Check the ingredients and allergens

Read the full ingredients list, including bulking agents, sweeteners and coating agents. The term ‘vegan’ generally refers to the composition of the capsule or tablet. Gluten-free status, on the other hand, should be clearly stated by the manufacturer.

People with allergies should look out for declared allergens. Centrum multivitamins for women and men, for example, indicate the presence of soya from the source of vitamin E. This is a detail that may be important when making your choice.

The format also matters: biotin or vitamin B12 gummies are easy to take, but often contain glucose syrup or sugar. Vitamin drinks may provide several grams of sugar per bottle, despite having a moderate calorie content.

3. Match the dose to the intended period of use

A bottle containing 365 or 400 tablets reduces the need for repeat orders, but a large pack is only worthwhile if the formula really suits you. High-dose products, particularly certain vitamin D3, selenium or vitamin B12 products, should not be combined with similar supplements without checking first.

Follow the dosage stated on the packaging. Ask a doctor or pharmacist for advice if you are pregnant or breastfeeding, taking medication, living with a chronic condition or due to have blood tests. Biotin, for example, should be disclosed before certain laboratory tests.

Our selection based on your profile

Recommended for:  Budget-conscious beginners
Centrum Women's Multivitamins and Minerals, 30 Tablets

Centrum Women's Multivitamins and Minerals, 30 Tablets

Why this choice suits this profile : This formula is easy to take, with one tablet per day. It combines 13 vitamins and 10 minerals, including 10 mg of iron, 80 mg of vitamin C and 10 µg of vitamin D per tablet.

How this product helps you avoid the pitfall

The label details the quantities per tablet and the NRV percentages, making it easier to compare with other supplements.

Main benefit and key features

A clearly defined women’s formula containing iron, vitamin B12, biotin, calcium and magnesium. Contains soya.

Recommended for:  Premium supplement enthusiasts
WeightWorld Multivitamins with Minerals 400 Tablets

WeightWorld Multivitamins with Minerals 400 Tablets

Why this choice suits this profile : With 400 tablets and a vegan, gluten-free formula, this product is ideal for adults who want to establish a long-term routine.

How this product helps you avoid the pitfall

The ingredients and the dose per tablet are clearly stated, so the high tablet count alone does not determine whether the product is right for you.

Main benefit and key features

27 vitamins and minerals, one tablet per day, and a gluten- and lactose-free formula suitable for vegetarians and vegans.

Recommended for:  Specific needs and intensive users
WeightWorld Vitamin D3 2000 IU 400 Tablets

WeightWorld Vitamin D3 2000 IU 400 Tablets

Why this choice suits this profile : This product is aimed at adults looking for targeted supplementation, providing 50 µg of vitamin D3 per tablet in a pack of 400 mini tablets.

How this product helps you avoid the pitfall

The dose and source of the vitamin D3 are clearly stated, making it easier to avoid duplicating it with a multivitamin.

Main benefit and key features

Compact tablets, a vegetarian and gluten-free formula, and clear dosage instructions of one tablet per day.

Recommended for:  Women in perimenopause or menopause
Nutri&Co Menopause Formula – 60 Capsules

Nutri&Co Menopause Formula - 60 Capsules

Why this choice suits this profile : This vegan formula combines hop, saffron and butcher’s broom extracts with vitamins C, B6 and B12. The daily dose is two capsules.

How this product helps you avoid the pitfall

The extracts and their quantities are detailed. Precautions relating to phytoestrogens and medication are also mentioned.

Main benefit and key features

60 vegan capsules, with no artificial colours or titanium dioxide, and a targeted composition for the transition to menopause.

Looking for more options ?

We have brought together a complete, real-time selection of products that meet these strict criteria and European safety requirements.

Which format should you choose for everyday use?

  • Tablets and capsules: practical for regular use and easy to dose.
  • Chewable gummies: a good option for people who find swallowing difficult, provided you check the sugar content and recommended dose.
  • Vitamin drinks: convenient at work or after exercise, but keep an eye on the carbohydrate content. Vitamin Well Reload Lemon provides 17 g of sugar per 500 ml bottle, compared with 19.5 g for Vitamin Well Hydrate.
  • Sleep formulas: melatonin, such as that found in smartsleep SLEEP+, should be used according to the instructions on the label. Ask for advice before taking it alongside any medication, or if you are pregnant or breastfeeding.
  • Vegan food supplements: check the source of the vitamins and the capsule composition, particularly for vitamin D3, vitamin B12 and minerals.

Frequently asked questions

Can you take a multivitamin all year round?

It depends on its composition, dosage and your diet. Long-term use is not always necessary. Check your combined intake of vitamin D, iron, zinc, selenium and vitamin A, then ask a healthcare professional for advice if you have a specific need.

Which vitamin B12 supplement should vegans choose?

A dedicated formula may be easier to understand than a multivitamin. WeightWorld Vitamin B12 Methylcobalamin provides 1,000 µg per mini tablet and is suitable for vegans. Its vitamin B12 gummies offer the same dose per gummy. Compare the form, excipients and frequency of use.

How long can you keep a food supplement?

Follow the best-before date shown on the packaging and the storage instructions. Keep the bottle tightly closed, in a dry place away from heat and light. Once opened, a vitamin drink should generally be stored in the fridge and consumed within the time stated on the label.