For the general healthy population, a balanced diet is sufficient to cover all nutritional needs; therefore, dietary supplements are unnecessary and constitute a superfluous expense.

noli's read

This position aligns with the consensus of numerous public health authorities, which emphasize that nutrients are better absorbed through a varied diet (meta-analysis, Cochrane). However, research qualifies this finding for several reasons: certain deficiencies are widespread despite a 'balanced' diet, such as vitamin D in our latitudes (observational studies, ANSES) or iodine in certain geographical areas. The term 'balanced diet' is also difficult to define and maintain daily, making the risk of occasional deficiencies real. While the statement is scientifically robust for avoiding unnecessary overconsumption of marketing products, it omits that certain profiles (vegans, intense athletes, the elderly) have specific needs not covered by a standard diet. It is therefore more accurate to speak of an individualized approach rather than total uselessness on principle.

the sources

1. 1NIH Office of Dietary Supplements 2026
2. 2NIH Office of Dietary Supplements 2026
3. 3NIH Office of Dietary Supplements 2026
4. 4NIH Office of Dietary Supplements 2026