2) Briefly explain obesity and how is it measured? * Obesity is referred to the amount of excess fat tissue present on the body measured by the body mass index (BMI). A BMI between 25 – 29.9 is known to be overweight and a BMI above 30 is considered to be obese.
3) One example of a macronutrient and micronutrient and explain their functions and which food source are we likely to receive these nutrients. * Macronutrient: Fibre is a type of carbohydrate that the body does not digest. Fibre helps the body maintain a healthy bowel, it helps lower the risk of heart disease, protects against bowel cancer as well aid in preventing constipation and haemorrhoids. Fibre comes in the form of soluble and insoluble fibres and comes from food sources such as fruit and vegetables. * Micronutrient: Vitamin A is the micronutrients that helps form and maintain skin tissues to protect against infections; it also helps in normal growth of bones and teeth. Vitamin A is found in food sources such as liver and kidneys.
4) What is the relationship between Low GI diet and the prevention of obesity?
The relationship between Low GI diet and the prevention of obesity is that a diet that is considered Low GI will prevent obesity. Low GI foods provide a source of energy for a longer period of time therefore individuals are likely to consume less food, leading to a healthier weight