1. BTEC National Diploma in Sport
Unit 11 – Sports Nutrition

2. Learning Objectives
Describe the role of micronutrients as part of a balanced diet
Provide specific examples of micronutrients and their roles

3. What are micronutrients?

4. Vitamins and minerals
Vitamins and minerals are required in much smaller amounts
In some cases in small quantities
Despite the small requirements, many play a critical role in regulating chemical reactions in your body

5. Vitamins and minerals Provide no calories – no energy!
They perform specific functions and prevent particular deficiency diseases
Most v + m cannot be produced by the body
The exceptions are:
Vitamin D – synthesis by sunlight on the skin
Vitamin K – can be produced by the bacteria in the large intestine

6. Vitamins Vitamins may be subdivided into: Water soluble – B, C
Fat soluble – A, D, E, K – fatty/oily foods

7. Vitamins
The water soluble vitamins cannot be stored in the body so they must be consumed on a regular basis
If excess quantities of these are consumed, the body will excrete them in the urine
Fat soluble vitamins are stored in the body’s fat so it is not necessary to consume these on such a regular basis – can become toxic in very high doses!

8. Vitamins
They are also required to support growth, and the immune and nervous system functions, and some are involved in the production of hormones
Vitamins are obtained from a wide variety of plant and animal sources and your body requires differing amounts of each vitamin

9. Vitamins
Individual vitamin requirements vary and are determined by age, sex, state of health and levels of physical activity
The Department of Health has recommendations for all nutrients for different groups of healthy people within the UK
A balanced and varied diet that provides an adequate energy content should supply sufficient intakes of all vitamins

10. What vitamins are there?

11. Deficiency of Vitamin B3 (Niacin)
Pellagra - Diarrhea, Dermatitis, Dementia, Death
Red meat and whole grains

12. Deficiency of Vitamin C
Scurvy
Citrus fruits, strawberries, potatoes, broccoli

13. Deficiency of Vitamin D
Rickets – a weakening and softening of the bones

14. Minerals
Minerals are vital for many functions essential to life

15. What minerals do you know?

16. Minerals Major Calcium Chloride Magnesium Phosphorous Potassium Sodium
Sulfur
Trace
Chromium
Copper
Fluoride
Iodine
Iron
Manganese
Selenium
Zinc

17. Deficiency of Iron
Anaemia

18. Minerals - Functions
Form structures e.g. bone, connective tissues, enzymes and hormones
Nerve function and muscle contraction
Regulate fluid balance in your body
Levels of minerals are closely controlled by absorption and excretion to prevent excessive build up

19. Task 1

20. What should this include?
What is a balanced diet?
What should this include?
Create 8 guidelines to achieving a balanced diet
How might a balanced diet for one person be different to another's?
Can you think of some specific examples to explain this?

21. A healthy plate – based on the Eatwell Plate

22. Public Health Sources World health organisation
British Nutrition Foundation
NHS
GOV.UK