Frequently Asked Questions
How much omega-3 should seniors take daily?
For general cardiovascular health, 1–2g of combined EPA+DHA daily. For elevated triglycerides, higher doses (2–4g EPA) require prescription-strength omega-3 (Vascepa). Triglyceride form absorbs better than ethyl ester.
Is fish oil safe with blood thinners?
At standard doses (1–2g/day), minimal effect on bleeding. Higher doses may mildly increase bleeding time. Seniors on warfarin should inform their doctor before starting.
What is the difference between EPA and DHA?
EPA has the strongest cardiovascular evidence. DHA is critical for brain structure. Most fish oil contains both. For pure cardiovascular benefit, high-EPA products are preferred.
Does omega-3 help dry eye?
Yes — 2–3g EPA+DHA daily reduces dry eye symptoms significantly in clinical trials. One of the most underused omega-3 applications in seniors.
Omega-3 fatty acids have over 40,000 published studies — the most researched supplement in cardiovascular medicine. For seniors, specific applications have clear clinical evidence. Here is what the research actually shows.
Heart Health Evidence
REDUCE-IT trial (2018): 4g/day pure EPA (Vascepa) reduced major cardiovascular events by 25% in high-risk patients with elevated triglycerides. This is prescription-level dosing. For standard fish oil (1–2g EPA+DHA): 15–30% triglyceride reduction and modest anti-inflammatory effects.
Brain Health
DHA is approximately 40% of the brain's polyunsaturated fatty acids. Higher fish consumption consistently correlates with lower dementia rates in observational studies. Clinical trial evidence is promising — benefit appears greatest when started before significant cognitive decline.
Dry Eye (Underused Application)
Dry eye affects 30%+ of seniors. Multiple trials show meaningful improvement with 2–3g EPA+DHA daily — reduces meibomian gland inflammation and improves tear film quality. Ask your ophthalmologist.
What to Look For
- EPA+DHA content per serving — a "1,000mg fish oil" capsule may contain only 300mg actual EPA+DHA
- Triglyceride form — absorbs ~70% better than ethyl ester
- IFOS or NSF certification — confirms purity, tests for mercury
- Take with a fat-containing meal — maximizes absorption
Eat Fish First
Two servings of fatty fish weekly — salmon, sardines, mackerel — provides similar omega-3 as daily supplementation plus vitamin D, selenium, and protein. Supplementation is appropriate when fish intake is limited or higher therapeutic doses are needed.
- Take with a fat-containing meal for optimal absorption
- Check EPA+DHA per serving — not total fish oil weight
- Look for IFOS certification
- Warfarin users: inform your doctor before starting
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