Nutrition is the stepchild of healthcare
What you eat has everything to do with your health. Food must supply you with enough nutrients to make energy, enzymes, hormones and regenerate cells. Sickness happens when your body does not have the nutrients to keep up with your daily demands. Most sickness has to do with your food and lifestyle.
In a perfect world the food you eat every day would be clean, organic and nutritious. Otherwise supplementation is necessary to overcome the great deficiencies of mass produced foods. Mega dosed vitamin supplements without specific objectives will only serve to increase your toxic load and poison your body. Responsible nutrition is about making sure the nutritional supplements serve clear objectives to keep you in optimum health.