As per the American Institute for Cancer Research, a dietary supplement is a product intended for ingestion that contains a ‘dietary ingredient’ intended to achieve levels of consumption of micronutrients or other food components beyond what is usually achievable through diet alone.
However, researchers have stressed on the importance of nutrients from food over supplements.
Researchers at Tufts University have said that lower risk of death associated with adequate nutrient intakes of vitamin K and magnesium was limited to nutrients from foods, not from supplements. In the study over 27,000 US adults were evaluated. They have also said that getting sufficient vitamin K, vitamin A, and zinc from a balanced diet lowers chances of having cardiovascular disease and have said that the same benefits are not received through pills.
1. Vitamin B12
Full Story Source: Long term consumption of these vitamin supplements might lead to cancer
