Essay On Nutrition

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Nutrients can be described as the chemical components of food and can be classified into six broad groups: carbohydrates, proteins, fats, vitamins, minerals and water.

Water is not technically a nutrient, but it is essential for the utilisation of nutrients.

If your energy intake equals the amount of energy you expend, then you are in energy balance.

If your intake exceeds your expenditure, the excess energy is converted to body fat and you gain weight.

Men, in particular, often deposit weight in the waist region.

Studies have shown that the distribution of body fat is associated with an increased prevalence of diabetes, hypertension, high cholesterol and cardiovascular disease.

Normally, 85% of daily energy use is from fat and carbohydrates and 15% from protein.

In humans, nutrition is mainly achieved through the process of putting foods into our mouths, chewing and swallowing it.

Your BMI can therefore be used as a diagnostic tool for both over-nutrition and under-nutrition. However, the BMI is best used together with waist circumference.

If your BMI is between 25.0 and 29.9 you are classisfied as overweight. BMI and children The healthy weight range for adults of a BMI of 20 to 25 is not a suitable measure for children.

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