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Nutrition is essential for growth and development, health and wellbeing.
It takes into account your weight and height, and correlates well with total body fat expressed as a percentage of body weight.
The correlation depends on age, with the highest correlation seen in ages 26–55 years and the lowest in the young and the elderly.
Having fat around the abdomen or a ‘pot belly’, regardless of your body size, means you are more likely to develop certain obesity-related health conditions.
Fat predominantly deposited around the hips and buttocks doesn’t appear to have the same risk.
Generally, the association between health risks and body fat distribution is as follows: Being physically active, avoiding smoking and eating unsaturated fat instead of saturated fat have been shown to decrease the risk of developing abdominal obesity.
When there is an imbalance between your nutrient requirements and your intake, malnutrition sets in.These charts should be used only by health professionals such as your general practitioner, child health nurse, or dietitian.Body fat distribution and health risk A person’s waist circumference is a better predictor of health risk than BMI.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.The required amounts of the essential nutrients differ by age and the state of the body, for example: physical activity, diseases present (e.g.prostate cancer, breast cancer or weakened bones – known as osteoporosis), medications, pregnancy and lactation.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.On the other hand, if your intake is less than your expenditure, your body uses up fat stores and you lose weight. The average energy intake is about 2800 kcal/day for men and 1800 kcal/day for women, although this varies with body size and activity level. Carbohydrates must be reduced to the simplest form of glucose (through digestion) before your body can make use of them.Therefore, for weight to remain stable, the total amount of calories that are consumed must not exceed the total that is used up through metabolic processes (e.g. Carbohydrates Carbohydrates can be classified as monosaccharide (e.g. sucrose, lactose, maltose) and polysaccharide (e.g. Carbohydrates should make up at least 55% of your total energy intake.