howtosupplement
Beauty/Heart/Inflammation

Flaxseed Oil

Plant omega-3 oil rich in ALA that may support skin barrier and heart markers in adults who rarely eat fish.

Flaxseed Oil

Flaxseed Oil

51
score
C
evidence
Safe
risk
Quick Take

Reasonable plant omega-3 if you avoid fish, but benefits are modest and it is not a full EPA/DHA substitute.

Flaxseed oil is pressed from flax, or linseed, and is one of the richest sources of alpha-linolenic acid (ALA), a plant omega-3 also found in ground flax, chia, walnuts, and canola oil. ALA is built into cell membranes and only partly converted to EPA, which may modestly affect inflammatory signaling and skin lipids. Best-supported benefits are improved skin hydration, with smaller possible effects on blood pressure and inflammatory markers. It is most useful for adults with low fish intake who want a plant-based omega-3 source.

Proven Benefits

01
Improves skin hydration
02
May reduce skin sensitivity
03
May lower blood pressure
04
May lower CRP and IL-6
05
May ease dry eye symptoms

Protocol

Amount
5-10 mL
Frequency
Once daily or split into 2 doses
When
With meals; use in cold foods or low heat, not for high-heat cooking.

Onset Time

4-8 weeks for skin; 8-12 weeks for BP or lab markers

Who Should Consider

Adults who rarely eat fatty fish
Vegans and vegetarians
Adults with dry or sensitive skin
People who do not tolerate fish oil well

Food Sources

  • Ground flaxseed (~2.4 g ALA per tbsp)
  • Chia seeds (~2.5 g ALA per tbsp)
  • Walnuts (~2.5 g ALA per 28 g)
  • Canola oil (~1.3 g ALA per tbsp)

How It Works

ALA from flaxseed oil is built into membrane phospholipids and converted in limited amounts to EPA. This can slightly shift eicosanoid signaling toward a less inflammatory profile and, in skin, help support barrier lipids that reduce water loss.

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