Why "more omega-3" isn’t always the answer (it’s about ratio)

The intuitive fix is to take more omega-3. The math says otherwise.

Why ratio matters more than total

Cells use whichever fatty acid is available. A 20:1 ratio means cells reach for omega-6 about 95% of the time. Adding more omega-3 only helps if you also reduce omega-6. Otherwise the ratio barely moves.

The math, made concrete

Imagine your daily intake is 30 g omega-6 and 1 g omega-3. That's a 30:1 ratio.

• Add 1 g extra omega-3 (one fish oil capsule) → 30:2 = 15:1. Small win.
• Reduce omega-6 to 10 g (eat in more, choose restaurants carefully) → 10:1 = 10:1. Bigger win.
• Do both → 10:2 = 5:1. Massive shift.

Notice: reducing omega-6 alone moved the ratio further than adding omega-3 alone.

Why people don't reduce omega-6

• Cooking at home is harder than buying a supplement
• Restaurants almost universally use seed oils — eating out kills the math
• "Add" is easier than "subtract"

The realistic split of effort

• 70% of the work — reduce omega-6 (cook at home more, choose restaurants carefully)
• 30% of the work — add omega-3 (oily fish 2–3× per week, supplement if needed)

One more thing: marine vs plant omega-3

When you do add omega-3, the form matters. Plant omega-3 (ALA in flax, chia, walnuts) is helpful but the body converts only ~5–10% into EPA — the form your cells actually use. Marine omega-3 (EPA + DHA from oily fish or a quality supplement) is the more reliable lever. So a flax smoothie supports the system, but a serving of mackerel — or a properly dosed marine omega-3 supplement — moves the needle further per gram.

If you've spent more on supplements than on changing how you cook at home, this might be inverted.