# 49 Diet
The food an animal eat everyday is called diet. Most animals need 7 types of nutrients in their diet: carbohydrates, proteins, fats + water, fibre, vitamins, minerals.
The amount of energy needed is provided mainly by our carbohydrate and fat intake. Your dietary requirements depend on your age, sex and activity.
- Age: The energy demand increases until we stop growing. While children are growing they need more protein per kilogram of body weight than adults do.
- Sex: Generally, males use up more energy than females.
- Pregnant women need extra nutrients for the development of the fetus.
- Age: The energy demand increases until we stop growing. While children are growing they need more protein per kilogram of body weight than adults do.
- Sex: Generally, males use up more energy than females.
- Pregnant women need extra nutrients for the development of the fetus.
A. A balanced diet is a diet that contains all the main nutrients in the correct amounts and proportions to maintain good health.
B. Malnutrition is the result of not eating a balanced diet. There may be:
Effects of malnutrition
1. Obesity - Too much food (carbohydrate, fat or protein)
- wrong amount of food: too little or too much
- incorrect proportion of main nutrients
- lacking in one or more key nutrients
Effects of malnutrition
1. Obesity - Too much food (carbohydrate, fat or protein)
2. Coronary heart disease
- Too much saturated/animal fat in the diet results in high cholesterol levels.
- Cholesterol can stick to the walls of arteries, gradually blocking them.
- If coronary arteries become blocked, the results can be angina and coronary heart disease.
3. Starvation
- Too little food can result in starvation.
- Extreme slimming diets, such as those that avoid carbohydrate foods, can result in the disease anorexia nervosa.
4. Childhood protein-energy malnutrition (Kwashiakor): Wrong proportion of nutrients e.g. too much carbohydrates (starchy foods) and a lack of protein can lead to Kwashiakor in young children.
5. Vitamin, mineral and fiber deficiency diseases - Lacking key nutrients.