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Nutrients, their sources and common diseases — a high-yield quick reference for competitive exams.
| Nutrient | Function & Sources |
|---|---|
| Carbohydrates | Main source of energy — rice, wheat, potato |
| Proteins | Body building & repair — pulses, eggs, milk, meat |
| Fats | Energy storage — oil, ghee, nuts |
| Vitamins | Regulate body functions — fruits & vegetables |
| Minerals | Calcium, iron, iodine — for bones, blood & growth |
| Water & Fibre | Hydration & digestion |
| Type | Examples |
|---|---|
| Bacterial | Tuberculosis (TB), typhoid, cholera |
| Viral | Common cold, dengue, COVID-19, hepatitis |
| Protozoan | Malaria (spread by female Anopheles mosquito) |
| Deficiency | Anaemia (iron), goitre (iodine), scurvy (Vitamin C) |