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

Proven Benefits

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

Chemical Forms

Recommended
  • Cold-pressed flaxseed oil
  • Flaxseed oil softgels
Avoid
  • Heat-processed flaxseed oil (greater oxidation)
  • Clear-bottle liquid oil (light speeds rancidity)
  • Old or unrefrigerated liquid oil after opening (oxidation risk)
Expert Note

ALA is highly unsaturated and oxidizes easily. Cold-pressed oil in dark bottles or sealed softgels preserves freshness better than heat-processed or clear-bottle products. Once opened, liquid oil should be refrigerated and used promptly.

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.

Condition-Based Dosing

Adults with low fish intake
5-10 mL daily with meals
Dry or sensitive skin
10 mL daily for 8-12 weeks
If using softgels
Choose enough capsules to provide about 2-4 g ALA daily

Safety & Limits

Upper Safe Limit
No official UL established; adult studies commonly use 5-15 mL/day, with GI upset the main dose-limiting issue.
Cycling
Safe for continuous use

Contraindications

Flax or linseed allergy — avoid use

Synergies

Omega-3

Flaxseed oil provides ALA, but conversion to EPA and especially DHA is limited; EPA/DHA supplies those downstream omega-3s directly.

Avoid Combining With

  • ✕High-heat cooking (oxidizes ALA; use cold or low heat only)
  • ✕Light and air after opening (speeds rancidity; refrigerate and cap tightly)
  • ✕Orlistat or other fat-blocking drugs (reduce absorption)
  • ✕Mineral oil laxatives (can reduce oil absorption if taken together)
Updated Invalid Date