Bill Sardi, consumer advocate and health care research analyst, explains why an editorial in the Annals of Internal Medicine that says vitamins are ineffective is based on fundamentally flawed studies.
- None of the studies obtain blood levels of nutrients before and at the completion of the study.
- They only deal with mortality (death) rates, not morbidity (presence or rate of disease).
- The dosages of vitamins studied are often very low.
- They don’t account for drugs that induce nutrient deficiencies.
- The researchers’ affiliations with commercial interests were not disclosed.
- The sweeping condemnation of vitamins is not justified, considering two thirds of Americans never take vitamins and the remaining third don’t take them very often.
The editorial concluded vitamins are a waste of money and the “case was closed.” Hardly, says Bill Sardi.