Question

Nutrition of Human beings

Answer 1

Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and health. Generally, people can survive up to 40 days without food, a period largely dependent on the amount of water consumed, stored body fat, muscle mass and genetic factors.

Poor nutrition is a chronic problem often linked to poverty, a poor understanding of nutrition and dietary practices, and deficient sanitation and food security.Malnutrition and its consequences are large contributors to deaths and disabilities worldwide Good nutrition helps children grow physically, promotes human biological development and helps in the eradication of poverty.

Answer 2

Nutrients are the substances in food that maintain the body and make it work.  Most of what one eats is made up of carbohydrates, proteins, and fats.  Nutrients needed in smaller amounts, but still vital, are vitamins and minerals.  Also on the list are fiber and water.  Our diet should comprise a mix of foods that supply all necessary nutrients in the right amounts. Such a diet is called a balanced diet.