Unit one: Exploring the principles of healthy eating
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1. Define what is meant by the term ‘healthy diet’.
A healthy diet is likely to include a large number or variety of foods, from each of the food groups, as this allows us to get all the nutrients that we need.
2. Describe why the healthy diets of adults and children may be different. Provide at least three examples of these differences. Older children often have higher nutrient requirements than adults in order for them to grow properly, 15-to-18 year-old boys need more B vitamins, calcium, phosphorus and iron than adult men
3. Give an outline of at least three lifestyle diseases associated with unhealthy diets.
If you are significantly overweight, you need to avoid further weight gain and you need to lose weight. Excess body fat is a lot to carry and hard on your heart. Your lungs have to work harder, too.
Caused by a build-up of fatty deposits on the walls of the arteries around the heart e.g pizza, sweets, chocolate
cancers of the bowel, stomach, mouth, food pipe and breast.
4. Name three sources of energy in food. Then, identify the amount of energy that 1g of each source provides.
Proteins - essential to growth and repair of muscle and other body tissues -1 gram = 4 calories Fats - one source of energy and important in relation to fat soluble vitamins- 1 gram = 9 calories Carbohydrates - our main source of energy -1 gram = 4 calories
5. Based on your own diet and lifestyle...
• Estimate your own Basal Metabolic Rate (BMR)
• Estimate your own Physical Activity Level (PAL)
• Based on these BMR and PAL values, what is your total energy requirement?
Basal Metabolic Rate=1681.59
Physical Activity Level
140lbs x 17 = 2380
Energy requirement – could work hard with the amount of energy im taking in
6. Identify at least two factors that can affect a person’s energy requirements.
7. For a person you know who wishes to manage their weight, outline the relationship between their energy intake and energy expenditure and the impact this can have on their weight.
If you don’t eat loads off food and have loads off excise you will be under weight If you eat loads off food and don’t do much excise you will be over weight If you do equal amounts off both you will be the right weight
8. Why is it important to control your salt intake?
It is important to control you salt intake because:
It can lead to high blood pressure.
• Heart problems
• Cardiovascular disease
• Increase the risk of death
9. Complete the table below with information on the five food groups.
• In the left-hand column, list the five food groups.
• In the right-hand column, provide at least two examples of foods belonging to each of the five food groups.
An example has been provided to help you get started.
|Food groups |Examples | |Example: |Example: | |Milk and dairy foods |Milk, cheese, cottage cheese, yoghurt...
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