पोषण Questions and Answers – पृष्ठ 3
पोषण से संबंधित महत्वपूर्ण प्रश्न एवं उत्तर जो SSC, UPSC, रेलवे आदि प्रतियोगी परीक्षाओं के लिए उपयोगी हैं।
FAQ
पोषण FAQs
Common questions and clear answers for this topic.
What are the major nutrients required by the human body?
The human body requires six major nutrients: carbohydrates (energy source), proteins (growth and repair), fats (energy storage and insulation), vitamins (regulatory functions), minerals (bone and metabolic functions), and water. Each nutrient plays a specific role in maintaining health. A balanced diet includes all these nutrients in proper proportions.
What are vitamins and what is their role in the body?
Vitamins are organic compounds required in small quantities for normal body function. They are classified as fat-soluble (A, D, E, K) and water-soluble (B-complex, C). Vitamin A maintains vision, D helps calcium absorption, C builds immunity and prevents scurvy, B1 (thiamine) prevents beriberi, and B12 is essential for nerve function and blood formation.
What are deficiency diseases caused by lack of nutrients?
Nutrient deficiency diseases include: Scurvy (Vitamin C deficiency), Rickets (Vitamin D deficiency in children), Beriberi (Vitamin B1/thiamine), Night blindness (Vitamin A), Anaemia (Iron or B12 deficiency), Goitre (Iodine deficiency), Kwashiorkor and Marasmus (protein-energy malnutrition), and Pellagra (Niacin/Vitamin B3 deficiency).
What is the difference between carbohydrates, proteins and fats?
Carbohydrates provide immediate energy (4 kcal/g) and are found in rice, wheat, and fruits. Proteins are building blocks made of amino acids (4 kcal/g), essential for growth and repair, found in eggs, meat, legumes. Fats store energy (9 kcal/g), insulate organs, and aid vitamin absorption; found in oils, butter, nuts.
What is a balanced diet and why is it important?
A balanced diet contains all essential nutrients — carbohydrates, proteins, fats, vitamins, minerals, and water — in the right proportions. It supports growth, maintains energy, boosts immunity, and prevents deficiency diseases. ICMR recommends a daily intake that includes cereals, pulses, vegetables, fruits, dairy, and adequate water.
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