New Delhi, Dec. 6 -- India is ageing faster than most people realise. By 2030, one in five Indians will be over 50 - this is a demographic shift with major implications for productivity, healthcare and quality of life. But while longevity is increasing, "healthy longevity" is not keeping pace. National studies show widespread nutritional gaps among older adults despite better food availability. It's not what seniors eat; it's what their bodies can no longer use. Ageing, as one needs to understand, changes nutrient absorption, quietly and under the radar.

After 50, gastric acidity drops, gut motility slows, intestinal blood flow declines, and the liver becomes less efficient at processing nutrients. Even healthy seniors absorb some vitami...