Vitamins A vitamin C calcium and what are required to appear on nutritional labels?

Vitamins A and C, along with calcium, are required to be listed on nutritional labels in the United States. The Food and Drug Administration (FDA) mandates that these nutrients be included because they are essential for health and often lacking in people's diets. Additionally, other nutrients like iron and dietary fiber are also commonly listed to help consumers make informed dietary choices. The inclusion of these nutrients aims to promote better nutrition and public health awareness.