NUTRITION
Nutrition is the process by which the body takes in and uses food to grow, repair tissues, and provide energy. It is essential for health, development, and overall well-being.
Types of Nutrients and Their Functions
- Carbohydrates: Main source of energy; found in rice, yam, bread, maize, and potatoes.
- Proteins: Important for growth, tissue repair, and production of enzymes and hormones; found in beans, fish, meat, eggs, and milk.
- Fats (Lipids): Provide energy, protect organs, and help absorption of vitamins; found in vegetable oils, butter, nuts, and seeds.
- Vitamins: Help in growth and proper functioning; examples:
- Vitamin A: carrots, spinach – for vision.
- Vitamin C: oranges, guava – prevent scurvy.
- Vitamin D: sunlight, eggs – strengthens bones.
- Minerals: Support body functions like bone formation and oxygen transport; examples:
- Calcium: milk, fish – strengthens bones.
- Iron: meat, leafy vegetables – prevents anemia.
- Iodine: iodized salt – prevents goiter.
- Water: Maintains temperature, aids digestion, and prevents dehydration; found in drinking water, fruits, and vegetables.
- Fiber (Roughage): Aids digestion and prevents constipation; found in fruits, vegetables, and whole grains.
Balanced Diet
A balanced diet contains the right proportion of carbohydrates, proteins, fats, vitamins, minerals, water, and fiber to meet the body’s needs.
Importance of a Balanced Diet
- It helps to improve growth and development in children.
- It strengthens immunity against infections.
- It provides energy for daily activities.
- It prevents deficiency diseases like scurvy, rickets, and anemia.
- It supports proper brain development and cognitive function.
- It helps maintain healthy weight and body functions.
- It promotes healthy skin, hair, and nails.
- It improves overall physical fitness and resistance to illness.
Examples of a Balanced Diet
- Breakfast: Oatmeal with milk, boiled egg, and a banana.
- Lunch: Rice, beans, steamed vegetables, and fish.
- Dinner: Yam porridge with spinach and chicken.
- Snacks: Fruits, nuts, or yogurt.
Food Samples Showing Balanced Diet
| Food Group |
Example Foods |
Purpose |
| Carbohydrates |
Rice, Yam, Bread |
Energy |
| Proteins |
Fish, Meat, Beans, Eggs |
Growth and repair |
| Fats |
Vegetable oil, Nuts, Butter |
Energy and vitamin absorption |
| Vitamins |
Fruits (Orange, Mango), Vegetables (Carrot, Spinach) |
Prevent deficiency diseases |
| Minerals |
Milk, Leafy vegetables, Iodized salt |
Bone health, prevent anemia, thyroid health |
| Water |
Drinking water, fruits |
Hydration, bodily functions |
Common Malnutrition Problems
- Kwashiorkor: protein deficiency; swollen belly, stunted growth.
- Marasmus: deficiency of both protein and calories; severe wasting.
- Rickets: vitamin D deficiency; weak and soft bones.
- Scurvy: vitamin C deficiency; bleeding gums, weakness.
- Anemia: iron deficiency; fatigue and paleness.
Nutrition for Specific Groups
- Infants and Children: Breast milk for first six months; complementary foods afterward.
- Adolescents: Extra calories, proteins, and vitamins for growth and puberty.
- Pregnant and Lactating Women: Additional iron, calcium, folic acid, and protein.
- Adults: Balanced diet to maintain health and prevent lifestyle diseases.
Healthy Eating habit
- Eat a variety of foods from all food groups.
- Avoid excessive sugar, salt, and fatty foods.
- Drink plenty of clean water.
- Wash fruits and vegetables before consumption.
- Eat regular meals and avoid skipping breakfast.
Practical Activities
- Prepare a one-week balanced meal plan using local foods.
- Demonstrate correct food portioning for different age groups.
- Identify foods rich in vitamins, minerals, and proteins in your community.
- Monitor daily water intake.
- Conduct a home nutrition survey to identify common deficiency problems.
Summary
- Nutrition is vital for energy, growth, and overall health.
- A balanced diet provides all essential nutrients in the right proportion.
- Malnutrition leads to health problems, especially in children and pregnant women.
- Healthy eating habits prevent deficiency diseases and support normal development.