3. VITAMINS substances that are essential for the normal functioning of the body

4. SOURCE Liver VITAMIN DEFICIENCY can lead to dry hair and an itchy scalp and skin disease FUNCTIONS important for the health of your  hair  skin  throat  stomach

5. SOURCE Liver VITAMIN DEFICIENCY can lead to mouth and gum disorders and nervous symptoms (tiredness, numbness, dizziness and muscular weakness). FUNCTIONS  converts blood sugar to energy  helps your heart work efficiently  important for your brain and digestion

6. SOURCEVITAMIN DEFICIENCY  can lead to brittle bones  the enamel covering of your teeth can be weakened  wounds may also take longer to heal FUNCTIONS  helps prevent colds  promotes healthy bone growth  good for your teeth and gums

7. SOURCE FUNCTIONS  essential to bone formation and growth  reduces risk of bone malformations  important for healthy eyes and eyesight VITAMIN DEFICIENCY in children can lead to a lack of energy, and a desire for sweets, because the body is not using sugar efficiently.

8. SOURCE FUNCTIONS  essential for muscular health, including your heart  helps your nervous system VITAMIN DEFICIENCY can lead to high blood pressure and heart disease

9. TEST YOURSELF - how well do you know vitamins? 1.Which vitamin can you get from drinking orange juice? 2.Dairy produce provides you with two vitamins. Which are they? 3.Sitting for half an hour in a park on a sunny day will provide you with a natural source of which vitamin? 4.Which meat products are rich in vitamins? 5.Give three examples of leafy vegetables. 6.Which vitamins do the following people need?  someone worrying about a cut finger that won't stop bleeding  someone scratching their head  a child lying on a sofa and compulsively eating lots of sweets  someone with no feeling in their toes  someone who is short of breath and whose face looks redder than normal