Food Classification Essay

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Nutrition:
Food Classification: Food is anything edible, solid, semi-solid, or liquid when swallowed, digested and assimilated in the body. It provides us with energy, repairs body tissue, builds new cells and tissues, protects the body from disease and regulates body processes. Food can be classified as macronutrients or micronutrients. Macronutrients consist of Carbohydrates, Proteins and Fats. Micronutrients consist of Vitamins and Minerals.

Macro Nutrients: There are three macronutrients. Carbohydrates, Proteins and Fats.
Functions: Carbohydrates usually come from plant sources. They are the fuel for exercise and work. When it is digested it is converted into blood glucose or is stored as glycogen in liver. Excess is stored as fat. There …show more content…

They consist Carbon, Hydrogen and Oxygen. Fats are composed of a glyceride and 3 fatty acids. It provides us with energy. It is stored as a source of energy (adipose tissue). It protects delicate organs and provides insulation. Fats can be classified as saturated, monosaturated and polyunsaturated. Saturated fats are culprit in heart disease and they increase cholesterol. Monosaturated are fats oils nuts and seeds. They have great health benefits. Polyunsaturated fats are oily fish and vegetable oils and they have been proven to reduce cholesterol. Essential fatty acids are a type of polyunsaturated fat. They cannot be made in the body. They have many health benefits e.g. blood clotting, inflammation and improves immunity. Fats are a source of energy and insulation. They can give the body shape and provide protection to vital …show more content…

To calculate your BMR for Women the formula you use is: BMR = 655 + (9.6 x weight in kilos) + (1.8 x height in cm) - (4.7 x age in years) For men to work out your BMR you use the formula: BMR = 66 + (13.7 x weight in kilos) + (5 x height in cm) - (6.8 x age in years). The BMR in athletes varies in age. The formula for ages 10- 18 years in men is (body weight in kg x 17.5) + 651. In women it is 651 (body weight in kg x 12.2)+ 746. For ages 18-30 in men it is (body weight in kg x 15.3) + 679. In women these ages it is (body weight in kg x 14.7) + 496. Finally for the age group 31-60 years in men the formula is :(body weight in kg x 11.6)+ 879 and for women in this particular age group it is: (body weight in kg x 8.7) + 829.
Factors that affect BMR: Factors that affect your BMR are: your total body weight as the more you weigh the higher your BMR will be. Another factor is age, every year after your 20’s ½ of your body muscle is lost which means your metabolism will decrease. Dieting is also another factor, as is exercise, pregnancy and increased muscle mass. Climate and Gender are also factors that effect a person’s

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