Food and Digestion

Page 4

The guideline daily amounts for men, women and children

Obesity and Malnutrition People with excessive quantities of fat in their bodies are said to be obese. Obesity can cause lifethreatening illnesses such as heart disease, cancer, diabetes, liver disease, high blood pressure and mental health problems. The World Health Organisation (WHO) has classified obesity as a global epidemic, with over 1 in 5 adults affected by it in England. America is also facing problems with obesity, rates of which have increased sharply since the advent of supermarkets, fast food restaurants and the car. Obesity can be prevented by eating fat and sugar only in moderation, and consuming plenty of roughage, protein and water.

Male Obesity

no data <5% 5-10% 10-15% 15-20% 20-25% 25-30% 30-35% 35-40% 40-45% 45-50% 50-55% >55%

Malnutrition is at the other end of the scale. It is a lack of nutrients, especially fat, which can lead to a gaunt and ill looking face. Malnutrition far outweighs obesity as a global problem; while many people in developed countries are looking to slim down, over 1/6 of the world’s population does not have enough food. This means they cannot get enough nutrients in their diet. Although malnourishment mainly affects underweight people, obese people may also be affected. Malnutrition usually occurs in developing countries, but also affects individuals with anorexia in developed countries. Anorexia is sometimes coupled with bulimia, which is when a person eats too much, then tries to vomit the food up before it reaches the intestines. This damages the enamel on the teeth very badly. Teeth An adult should have 32 teeth, all of them permanent. In early years, an infant will grow 28 'milk teeth', smaller versions of the permanent teeth which are to follow. The milk teeth usually fall out when the child is 8-12 years old, and are replaced by stronger, larger permanent teeth. If the permanent teeth are damaged or knocked out, there is no natural way to replace them, but a false tooth can be inserted


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