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Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. [1] Poor nutrition is a chronic problem often linked to poverty, food security, or a poor understanding of nutritional requirements. [2]
Modern nutrition science began in the 1910s as individual micronutrients began to be identified. The first vitamin to be chemically identified was thiamine in 1926, and vitamin C was identified as a protection against scurvy in 1932. [2] The role of vitamins in nutrition was studied in the following decades.
There are three principal classes of macronutrients: carbohydrate, protein and fat. [1] Macronutrients are defined as a class of chemical compounds which humans consume in relatively large quantities compared to vitamins and minerals which provide humans with energy.
Westend61/Getty Images. Protein Content: 12.5 g protein per four ounce serving. Nutritional Information per Serving: 111 calories, 5 g fat, 4 g carbs Ways to Prepare: on its own or mixed with ...
A healthy diet may contain fruits, vegetables, and whole grains, and may include little to no ultra-processed foods or sweetened beverages. The requirements for a healthy diet can be met from a variety of plant-based and animal-based foods, although additional sources of vitamin B12 are needed for those following a vegan diet. [4]
In addition to grains, such as corn, rice, or wheat, vegetable protein also occurs in legumes, which include beans and peanuts. Grains tend to be deficient in tryptophan and lysine , whereas legumes lack methionine Thus a meal combining grains and legumes such as the Mexican peasant dish of corn tortillas and refried beans is basically complete ...
A report on proposed changes to U.S. dietary guidelines suggests encouraging people to eat more beans and lentils for protein and less red meat. Updated guidelines are expected to go into effect ...
A healthy diet can improve and maintain health, which can include aspects of mental and physical health. [2] Specific diets, such as the DASH diet, can be used in treatment and management of chronic conditions. [2] Dietary recommendations exist for many different countries, and they usually emphasise a balanced diet which is culturally appropriate.