Ageing
Well.

The world’s longest-living populations (“Blue Zones”) share nutrition patterns: plant-forward, whole foods, legumes, nuts, moderate protein, social eating. The Mediterranean diet is consistently associated with reduced all-cause mortality and cardiovascular disease (Sofi 2014). Focus on caloric quality over restriction.

Polyphenols (berries, rooibos tea, vegetables), omega-3 and limited ultra-processed foods support longevity. Encouragingly, traditional South African foods — morogo, beans, lentils, maize, vegetables — align well with longevity patterns. The challenge is the modern shift toward ultra-processed convenience foods, which undermines these traditions.

Sarcopenia — age-related muscle loss — occurs at 3–8% per decade after 30, accelerating after 60. It reduces strength, balance and independence, increasing fall and fracture risk. Nutrition backbone: protein 1.2–1.5 g/kg, evenly distributed at 25–30 g per meal, emphasising leucine-rich sources (whey, eggs, dairy, beans, lentils).

Resistance training is essential — nutrition alone cannot preserve muscle without the stimulus. Vitamin D supports muscle function. Hydration matters for muscle performance. In South Africa, low activity levels combined with low protein intake drive early frailty. Start strength training at any age — benefits occur even into the 90s (Fiatarone studies).

The MIND diet (Mediterranean-DASH Intervention for Neurodegenerative Delay) is associated with a 35% lower dementia risk (Morris 2015). It emphasises omega-3 DHA (fish), berries (polyphenols), leafy greens, nuts and olive oil, while limiting saturated fat, sugar and ultra-processed foods.

B-vitamins (B12, folate, B6) are critical — deficiency (common in older adults, especially B12) impairs cognition. Vitamin D and hydration also matter. In South Africa, dementia is rising as the population ages, and B12 deficiency is common in the elderly. The MIND pattern is achievable with SA foods: fish, spinach/morogo, berries, nuts, beans, olive oil.