Vitamins and minerals are essential, and most healthy people get enough of them from a varied diet. Supplements are helpful when the diet or the body cannot provide enough, but they are not a replacement for healthy food.
Who may need a supplement?
- People with a deficiency confirmed by a blood test, such as low vitamin D or iron.
- Women planning a pregnancy or who are pregnant, for example folic acid, as advised by the doctor.
- People with little sun exposure, a restricted diet or some long-term conditions.
- Older adults, whose needs for some nutrients can change.
More is not always better
Some vitamins, such as A and D, build up in the body and can be harmful in high doses. Taking several products at once can also add up to more than you need without noticing.
- Follow the dose on the pack or the one your doctor gives you.
- Check the labels if you take more than one product.
- Keep supplements out of the reach of children; iron in particular can be dangerous for them.
Supplements and medicines
Some supplements change how medicines work. For example, some minerals reduce the absorption of certain antibiotics and thyroid medicines. Always tell your pharmacist and doctor which supplements you take.
Questions to ask your pharmacist
- Do I need this supplement, and for how long?
- What is the best time to take it, with or without food?
- Does it interact with my other medicines?
