1. Healthy diet
1.1. Carbohydrates
1.1.1. Sugars
1.1.2. Starches
1.1.3. Energy
1.1.4. Starvation
1.2. Protein
1.2.1. Meat, Dairy, beans nuts,
1.2.2. Body repair and growth
1.2.3. Kwashiorkor
1.3. Lipids
1.3.1. Fats
1.3.2. Oils
1.3.3. Energy
1.4. Minerals
1.4.1. Body chemistry
1.4.1.1. Heart rate
1.4.1.1.1. Potassium
1.4.1.2. Blood pressure
1.4.1.2.1. Sodium
1.4.2. Body tissues
1.4.2.1. Teeth
1.4.2.1.1. Calcium
1.4.2.1.2. Phosphorous
1.4.2.2. Bones
1.4.2.2.1. Calcium
1.4.2.2.2. Phosphorous
1.5. Vitamins
1.5.1. Body chemistry
1.5.1.1. Vitamin C
1.5.1.1.1. Fresh fruit and veg
1.5.1.1.2. Repair and grow new tissue
1.5.1.1.3. Scurvy
1.5.1.2. Vitamin D
1.5.1.2.1. Fish Milk eggs oils
1.5.1.2.2. Form bones and teeth
1.5.1.2.3. Soft bones. Rickets
1.5.2. Tiny amounts
1.6. Water
1.6.1. Solvent
1.6.1.1. Water dissolves all the body's nutrients
1.6.2. Cells are mostly water
1.6.3. Blood is mostly water.
1.7. Fibre
1.7.1. Roughage
1.7.2. indigestible
1.7.3. prevents constipation
2. Digestive system
2.1. Mouth
2.1.1. Food is chewed and moistened
2.2. Oesephagus
2.2.1. Connects to stomach
2.3. Stomach
2.3.1. Mashes and liquidises food
2.4. Illeum
2.4.1. absorbs nutrients
2.5. Colon
2.5.1. absorbs water
2.6. Rectum
2.6.1. Stores faeces
2.7. Anus
2.7.1. Valve
2.8. Peristalsis
2.8.1. Muscular wave