Public Nutrition And Health | Class 12 Home Science Notes

SIGNIFICANCE

This section highlights the critical importance of focusing on public nutrition due to the alarming prevalence of malnutrition in India and its severe consequences. Malnutrition is the underlying cause of at least 50% of deaths among children under five years of age. Key statistics include that nearly one-fifth of infants in India are born with low birth weight (less than 2.5 kg), which can adversely affect their growth, development, and survival. Preschool children from socio-economically disadvantaged families show widespread growth retardation, with almost half suffering from mild to moderate undernutrition. Additionally, a large proportion of children and adults suffer from micronutrient deficiencies, termed 'hidden hunger,' involving iron, zinc, vitamins A, C, D, iodine, folic acid, and B12. If unaddressed, these nutritional problems impair physical growth, cognitive development, productivity, and quality of life, imposing significant economic costs estimated at more than 10% loss of lifetime earnings for individuals and 2-3% of the national GDP. The section also discusses the rising problem of overnutrition due to lifestyle changes, sedentary habits, and unhealthy dietary patterns, leading to obesity and non-communicable diseases like hypertension, diabetes, and heart disease. India faces a 'double burden of malnutrition'—coexistence of undernutrition and overnutrition—compounded by communicable diseases such as tuberculosis and HIV/AIDS, which worsen outcomes in malnourished individuals. This scenario underscores the urgent need for trained public health professionals to address these complex challenges.

📊 Diagram: No specific diagrams in this section.

🔗 Connection: Leads to the Basic Concepts section, which defines public health nutrition and explains its multidisciplinary nature.