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Health and Hygiene - Balanced Diet

Grade 3ICSE

Review the key concepts, formulae, and examples before starting your quiz.

🔑Concepts

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A balanced diet is a diet that contains all the essential nutrients like carbohydrates, proteins, fats, vitamins, and minerals in the right proportions, along with roughage and water (H2OH_2O).

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Carbohydrates are 'Energy-giving foods' that provide immediate energy for daily activities. Examples include rice, wheat, and potatoes.

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Fats provide more energy than carbohydrates and help keep the body warm (Fats>CarbohydratesFats > Carbohydrates in terms of energy storage).

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Proteins are 'Body-building foods' necessary for the growth and repair of damaged tissues and muscles.

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Vitamins and Minerals are 'Protective foods' that help our body fight against diseases and keep us healthy.

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Roughage (dietary fiber) helps in the easy passage of food through the digestive system and prevents constipation.

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Water (H2OH_2O) is essential for the digestion of food and for removing waste from the body in the form of urine and sweat.

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Food hygiene involves practices like washing hands before meals and washing fruits and vegetables to remove germs and chemicals.

📐Formulae

Balanced Diet=Carbohydrates+Proteins+Fats+Vitamins+Minerals+Roughage+H2OBalanced\ Diet = Carbohydrates + Proteins + Fats + Vitamins + Minerals + Roughage + H_2O

Energy Output≈Energy Input (from food)Energy\ Output \approx Energy\ Input\ (from\ food) equilibrium for maintaining weight.

💡Examples

Problem 1:

Identify the odd one out based on nutrient groups: Eggs, Pulses, Milk, Butter.

Solution:

Butter

Explanation:

Eggs, pulses, and milk are rich in proteins (Body-building foods), whereas butter is a source of fats (Energy-giving food).

Problem 2:

Why is it important to include H2OH_2O and roughage in our daily diet even though they do not provide energy?

Solution:

For digestion and waste removal.

Explanation:

Roughage adds bulk to the food, helping it move through the intestines, and H2OH_2O is vital for chemical reactions and flushing out toxins.

Problem 3:

If a child needs to grow taller and stronger, which nutrient should be increased in their diet?

Solution:

Proteins

Explanation:

Proteins are the building blocks of the body, required for the growth of new cells and repair of old ones (Growth∝Protein IntakeGrowth \propto Protein\ Intake).