Good nutrition can support health throughout life, but no food has been shown to stop ageing or guarantee longevity.
Spirulina provides protein, iron and naturally occurring pigments and nutrients. Research has examined antioxidant markers and cardiometabolic risk factors, but findings vary and do not establish spirulina as an anti-ageing treatment.
Healthy ageing depends on the wider picture: a varied diet, regular movement, sleep, social connection, appropriate screening and medical care.