Supplementing what we eat with added vitamins, minerals and herbs is a complex topic. If the perfect foods were always available, supplementation would not be needed. But in an imperfect world, sometimes supplementing diets is important.
Reasons people might need to supplement their diets include: dietary restrictions due to chronic illness, age-related problems absorbing nutrients, depletion from therapies (“chemo” or radiation), ethical or religious beliefs, dangerous interactions between some foods and certain drugs, or food sensitivities and allergies. Many foods produced by industrial processes also contain lower amounts of vitamins than their wild counterparts.