Why do we need food?
• We need food because it provides us
with energy for:
Food groups
• A. Carbohydrates
– They contain H,C and O
– They provide energy for movement.
– They are divided into two main
subgroups:
• Sugar: chocolate, fruits, candy….
• Starch: rice, wheat, potato……
Food groups
• B. Proteins
– They provide energy for
growth and repair.
– They are divided into two main
subgroups:
• Animal proteins: meat, fish, eggs….
• Plant proteins: soya bean, nuts……
Food groups
• C. Fats
– They provide insulation
and storage.
– They are divided into two main subgroups:
• Animal fats: butter, milk and dairy products……
• Plant fats: olive and corn oil, nuts……
Food groups
• D. Minerals
– Needed for our body to work
properly.
– Iron: for red blood cells. (red meat)
– Calcium: for bones and teeth. (milk)
– Magnesium, potassium…..
Food groups
• D. Minerals deficiency
diseases
– Iron deficiency: Anemia
– Calcium deficiency: Ricketts
Food groups
• E. Vitamins
– Are chemicals needed in small
amounts.
– They do not provide energy.
– They are needed for a healthy body
functioning.
– Vitamin A, B, C and D
Food groups
• F. Water
– 70% of our body is made up of water.
– It is very important for survival
Food groups
• G. Fibers
– It is needed for easy digestion.
– It prevents constipation and cancer of
intestines.
– Found in fruits, vegetables and whole
wheat bread.
Balanced Diet
• A balanced diet
includes all the
food groups in
the right
proportions