A new survey of the 60 million consumer magazine warns about the useless and potentially dangerous nature of eight brands of dietary supplements.
Dietary supplements rich in folic acid or omega-3 are not all useful ... and potentially harmful, alert the review 60 million consumers, who publishes an investigation in his March issue. The magazine screened eight brands of dietary supplements for children, adults and seniors.
Among the brands studied, certain dietary supplements for children containing vitamin D such as Pediakid (Ineldea laboratories) or Biane enfant (Pileje laboratory) could cause an overdose of vitamin D, this nutrient being often prescribed in ampoules during the winter .
In addition, the incriminated products may contain an excessive amount of fructose or salt and some additives would have a laxative effect.
Nausea, anxiety, headache ...
Other capsules containing caffeine, this time prescribed for students to help them stay awake, can impair the ability to memorize information and, if consumed in excessive amounts, trigger headaches, nausea, heart problems or signs of anxiety.
Supplements intended for seniors and supposed to "improve cognitive functions" and "strengthen the memory" like Cognisciences (Green Health laboratory) or Ginkor Memo (Tonipharm laboratories) are in the crosshairs of 60 million consumers.
Investigationparticularly emphasizes the dangerous nature of ginkgo biloba, a Chinese plant whose virtues on cognitive abilities have not been demonstrated. In addition, the action of this plant could interfere with anticoagulant treatments. "Caution is needed," says the report.
Instead of consuming dietary supplements, the magazine published by the National Institute of Consumption recommends promoting a balanced diet based on oily fish (rich in omega 3), dried fruits and vegetable oils.
Dietary supplements do not reduce the risk of depression
A study recently published in the JAMA analyzed the link between dietary supplement intake and the risk of depression. If medicine has proved that a balanced diet can prevent depression, it is not, according to this research, however, the case of dietary supplements.
The study was conducted on a cohort of 1000 adults from Spain, Germany, the Netherlands and the United Kingdom presenting a high risk of depression.
The volunteers were divided into two groups: the first followed a diet containing folic acid, vitamin D, omega-3, zinc and selenium for one year, while the second received a placebo treatment .
The scientists behind the study found that there was no reduction in depressive disorders in adults treated with multi-nutrients, compared to those who received placebo treatment.