Focus on getting lots of fruits, vegetables and grains. Healthy food choices may have advantages over supplements. Food is full of them. Many daily supplements have only small amounts of iron and calcium, and limited trace elements. They have no fibre, carbohydrates, essential fats or protein, and limited trace elements.
Vitamin pills are no substitute for healthy eating.
These are food chemicals that are good for your health. Scientists are still discovering these, and you can't get them in a supplement. They're only available from food. For some nutrients, pills provide larger amounts than your body can use. The extra amount goes through the body and gets lost through the urine.