With so many vitamins and supplements on the shelf, it is easy to wonder whether you should be taking something extra.
Vitamin D, B12, iron, magnesium and multivitamins come up most often. Does everyone need them? Not necessarily. The goal is to get the nutrients your body needs, not simply to take more supplements.
Why vitamins and minerals matter
- Vitamin D and calcium support bone health.
- Vitamin B12 helps maintain healthy nerves and red blood cells.
- Iron carries oxygen around the body.
- Magnesium supports muscle and nerve function.
- Folate supports cell growth, and matters particularly before and during early pregnancy.
When your body does not get enough of something, it can show up as fatigue, weakness or other problems.
Can a healthy diet provide enough?
For many people, yes. A balanced diet with vegetables, fruit, whole grains, beans and protein-rich foods provides most essential vitamins and minerals.
Certain dietary restrictions, medical conditions, medications and absorption problems raise the risk of a deficiency. Long-term metformin use, for example, can contribute to low vitamin B12 in some patients.
When should you consider a supplement?
Supplements help when you have a confirmed deficiency, higher nutritional needs, or genuine difficulty getting enough from food.
Taking them without a clear reason is not automatically beneficial. Too much iron, vitamin D or vitamin A can do harm. Some supplements interact with prescription medications, and high-dose biotin, common in hair and nail products, can interfere with certain laboratory tests.
If you suspect a deficiency, ask your prescriber whether testing or supplementation is appropriate for you — not everyone needs to be tested.
Make informed choices
Good nutrition is the foundation. Supplements can fill a specific gap; they do not replace balanced eating.
Not sure whether you need a vitamin or supplement? Our pharmacy team can go through labels, appropriate use and possible interactions with what you already take.
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This article is for general educational purposes and does not replace professional medical advice. Always talk to your healthcare provider before starting, stopping or changing any medication or supplement.