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Signs of healthThe importance of nutritionBalanced dietEnergy Food constituents (carbohydrates, proteins, fats, water, vitamins and minerals)Functions Types Sources Recommended intake Deficiency Excess Vegetarian dietsNutrition densityBMI (body mass index)Energy requirement calculationFood guide pyramidDiabetes Cardiovascular diseasesDiets The importance of exercise Smoking Eating during RamadanFactors that affect foodsPrevention against microbesStorage Refrigerating and freezingCooking Receiving Food allergies Kitchen sections