Food — Study Notes for UPTET

Overview

Food is a foundational topic in Environmental Studies (EVS) for UPTET Paper I. It connects directly to a child's daily life, making it ideal for activity-based and experiential learning approaches emphasised in the NCF framework. Questions typically test factual recall (sources, nutrients, deficiency diseases) as well as pedagogical understanding of how to teach food-related concepts to Classes I–V.

Expect 2–4 questions from this topic in the EVS section. Examiners focus on classification of food sources, functions of nutrients, components of a balanced diet, common preservation methods, and diseases caused by nutrient deficiencies. Since UPTET assesses both content knowledge and teaching aptitude, you must also understand how to present these concepts through child-centred activities.

Master the nutrient–function–deficiency chain thoroughly — it forms the backbone of most questions. Also remember local and regional food examples, as UP Board EVS encourages linking classroom content with the child's environment.

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Key Concepts

• **Food provides energy, enables growth, and repairs body tissues.** These three functions map directly to energy-giving, body-building, and protective foods.

• **Sources of food are classified as plant sources and animal sources.** Plants give us cereals, pulses, fruits, vegetables, oils and spices; animals give us milk, eggs, meat, fish and honey.

• **Nutrients are chemical substances in food that the body uses.** The six main nutrients are carbohydrates, proteins, fats, vitamins, minerals and water.

• **A balanced diet contains all nutrients in correct proportions** suited to a person's age, sex, occupation and health status. It prevents both under-nutrition and over-nutrition.

• **Food preservation extends shelf life by slowing spoilage.** Methods include sun-drying, refrigeration, boiling, pickling, adding salt/sugar, canning and pasteurisation.

• **Deficiency diseases result from prolonged lack of a specific nutrient.** Each deficiency has characteristic symptoms that are frequently tested.

• **Roughage (dietary fibre) is not a nutrient but aids digestion** by adding bulk to food and preventing constipation.

• **Water is essential for all metabolic processes**; humans need about 2–3 litres daily through drinking water and food.

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Formulas / Key Facts

| Nutrient | Main Function | Rich Sources | Deficiency Disease | |----------|---------------|--------------|-------------------| | Carbohydrates | Energy (4 kcal/g) | Rice, wheat, potato, sugar | Weakness, weight loss | | Proteins | Body-building (4 kcal/g) | Pulses, milk, eggs, fish, soybean | Kwashiorkor, Marasmus | | Fats | Energy reserve (9 kcal/g) | Ghee, oil, butter, nuts | Dry skin, poor growth | | Vitamin A | Healthy eyes and skin | Carrot, papaya, liver, milk | Night blindness, Xerophthalmia | | Vitamin B₁ (Thiamine) | Nerve function | Whole grains, legumes | Beri-beri | | Vitamin C | Immunity, wound healing | Amla, citrus fruits, guava | Scurvy (bleeding gums) | | Vitamin D | Calcium absorption, bones | Sunlight, fish, egg yolk | Rickets (children), Osteomalacia (adults) | | Calcium | Strong bones and teeth | Milk, cheese, ragi, green leafy vegetables | Weak bones, dental problems | | Iron | Haemoglobin formation | Jaggery, spinach, liver, dates | Anaemia (fatigue, pallor) | | Iodine | Thyroid function | Iodised salt, seafood | Goitre |