Omega - 3 for Healthy ageing (65+)

TL;DR
Omega-3 (EPA + DHA) is one of the most important supplements for healthy ageing. It supports brain volume, memory, mood, cardiovascular health, and reduces chronic low-grade inflammation — key drivers of age-related decline. Higher DHA status is linked to significantly lower risk of Alzheimer’s and all-cause dementia in older adults.

Evidence Rating: ⭐⭐⭐⭐⭐ Robust (Large cohort studies, meta-analyses, and consistent expert recommendations for adults 65+.)

Why Omega-3 Matters for Healthy Ageing

As we age, DHA levels in the brain naturally decline. EPA helps keep blood vessels flexible and reduces chronic inflammation. These two mechanisms — brain protection and cardiovascular support — make omega-3 one of the highest-impact supplements for maintaining independence and quality of life after 65.

Key Research Findings

Sala-Vila, A. et al. (2022) — In the Framingham Heart Study, older adults with the highest red blood cell DHA levels had a 49% reduced risk of developing Alzheimer’s disease and all-cause dementia. Brain imaging studies show preserved hippocampal volume with regular intake.

Supporting evidence: The VITAL trial and multiple 2023–2025 systematic reviews confirm benefits for cognitive function and cardiovascular health in adults 65+ with low baseline fish intake.

Who Benefits Most?

  • Adults 65+ concerned about memory and cognitive sharpness
  • Those with family history of dementia or cardiovascular disease
  • People who don’t eat fatty fish regularly
  • Anyone wanting to support healthy ageing and independence

Practical Dosage for Healthy Ageing

500–1,500 mg combined EPA + DHA daily is a practical and evidence-supported range for older adults. Easy-to-swallow capsules or liquid forms are often preferred. Take with a meal containing fat. Long-term consistency (months to years) delivers the best results for brain and heart protection.

This is not medical advice. BioHackNZ provides general information based on published research. Always consult your healthcare provider before starting any supplement regimen. Individual results vary.

Last updated: 06 May 2026 | BioHackNZ Research Team

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