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Nutritional science (also nutrition science, sometimes short nutrition, dated trophology [1]) is the science that studies the physiological process of nutrition (primarily human nutrition), interpreting the nutrients and other substances in food in relation to maintenance, growth, reproduction, health and disease of an organism.
People on a balanced vegetarian or vegan diet can obtain adequate nutrition, but may need to specifically focus on consuming specific nutrients, such as protein, iron, calcium, zinc, and vitamin B 12. [6] [2] [7] Raw foodism and intuitive eating are other approaches to dietary choices. Education, income, local availability, and mental health ...
Three-quarters of the people who are unable to afford a healthy diet live in low- and lower-middle-income countries. An unhealthy diet is a major risk factor for a number of chronic diseases including: high blood pressure , high cholesterol , diabetes , abnormal blood lipids , overweight / obesity , cardiovascular diseases , and cancer. [ 64 ]
Enteral nutrition (administering nutrition using a feeding tube) is started within 24 to 48 hours of admission with feeding targets increased every week. The risk of aspiration (inhalation of fluid or food particles while drinking or eating) can be reduced by elevating the head, using prokinetic agent , and using a chlorhexidine mouthwash.
Nutrition is the biochemical and physiological process by which an organism uses food to support its life. It provides organisms with nutrients , which can be metabolized to create energy and chemical structures.
Humans generally use cooking to prepare food for consumption. The majority of the food energy required is supplied by the industrial food industry , which produces food through intensive agriculture and distributes it through complex food processing and food distribution systems.
While schools are given an average yearly budget of 11 billion to school food programs and prisons are given a mere 205 million annual budget, still only less than one third of school food ...
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.