The nutritional value of food refers to the quantity and quality of nutrients found in the food item, according to the Healthy-food-site.com. Information about the energy (measured in calories), the macronutrients (carbohydrates, protein, fats), micronutrients (vitamins and minerals) and phytochemicals of the food are required to understand this.
Foods have different nutritional value. To know the nutritional value of certain foods, the USDA has created the National Nutrient Database for Standard Reference, which lists the nutrient information of more than 8,000 foods. Consumers can also find out the nutritional value of food products by reading the Nutrient Facts Label of the package. The FDA provides information on its site about the understanding and use of Nutrition Facts Labels.