Vitamins and minerals are an essential part of a well-balanced diet. These substances play a crucial role in digestion and metabolism in our bodies. They are not sources of energy and therefore have few calories. They regulate processes in the body, break down the nutrients into proteins, carbohydrates, and fats, enabling the production of new proteins, carbohydrates, and fats for our bodies. A deficiency in vitamins or minerals can lead to various health issues.