In brief: Dietary supplements are not universally required. Which nutrients make sense depends on individual risk or deficiency.
When supplements may be reasonable
| Situation | Example |
|---|---|
| Vegan diet | Vitamin B12 |
| Pregnancy | Folate according to guidance |
| Confirmed deficiency | Targeted correction |
| No risk situation | No automatic need for supplements |
Why more is not better
Vitamin A, D, iron, selenium and other nutrients can cause harm at high intakes. Using several products can lead to accidental duplication.
FAQ
Which three supplements does everyone need?
None.
Should blood tests be done first?
For some nutrients, that can be useful.
Is a multivitamin automatically safe?
No.
What is the best strategy?
Supplement only what is actually needed.
Conclusion
The best supplement strategy is short and justified: identify need, supplement appropriately and avoid duplication.
