1. Minerals

2. Mineral Salts Lack of minerals in diet can lead to a variety of serious conditions. Calcium Iron Chromium Magnesium Zinc

3. Iron Iron (as part of the protein hemoglobin) carries oxygen from our lungs throughout our bodies. Having too little hemoglobin is called anemia. Iron also helps our muscles store and use oxygen. Iron is a part of many enzymes and is used in many cell functions.

4. Sources of Iron Oysters Clams Cereals Organ meats (liver) Soybeans Vegetables

5. Iron Deficiency Iron deficiency is the most common nutritional deficiency and leads to a condition called anemia Signs of iron deficiency anemia include Feeling tired and weak Decreased performance Slow social development during childhood Decreased immune function, which increases susceptibility to infection Glossitis (an inflamed tongue)

6. Calcium Calcium is needed for the formation of your skeleton and teeth, for muscles to contract and for blood clotting to take place.

7. Sources of Calcium Dairy products - low fat or nonfat milk, cheese, and yogurt Dark green leafy vegetables Calcium fortified foods - orange juice, cereal, bread, soy beverages, and tofu products Nuts - almonds

8. Calcium Deficiency Weak bones (Osteoporosis) Weak muscles Delay in blood clotting

9. Vitamins

12. Scurvy Symptoms include lethargy, followed by formation of spots on the skin, spongy gums, and bleeding from the mucous membranes. Spots are most abundant on the thighs and legs, and a person looks pale, feels depressed, and is partially immobilized. As scurvy advances, there can be open wounds, loss of teeth, jaundice, fever and death.

13. Rickets Rickets is a softening of bones in children due to deficiency of vitamin D, magnesium, phosphorus or calcium, This leads to easy bone fractures and deformity.

14. What is nutrition? Nutrition is the taking in of nutrients containing raw materials or energy for growth and tissue repair, absorbing and assimilating them.

15. Fibre Dietary fibre is the indigestible part of food made up of mainly cellulose from plant cell walls. Plenty of fibre in the diet stretches the muscles of the gut wall and helps push the food along by peristalsis. Shortage of fibre can cause constipation. Shortage of fibre is also connected to the development of bowel cancer.

16. Water Water forms about 70% of human body. Humans lose about 1.5 litres of water each day in urine, faeces, exhaled air and sweat. Water must replaced through diet. As drink In food (such as tomatoes and lettuce) From metabolic processes