What about studies that show the negative aspects of taking vitamins?
Many studies are based on subjects taking synthetic or crystalline (fractionated) vitamins. These isolated vitamins eventually lead to biochemical imbalances and nutritional deficiencies and are actually linked to an increased risk of heart disease, certain types of cancers, birth defects and even DNA damage. This is not surprising when you understand that many synthetic vitamins are derived from unhealthy sources, such as coal tar and corn syrup.