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What are some potential drawbacks or side effects of drinking flaxseed milk?

Quick answer

We found no official source on flaxseed milk itself. NIH's NCCIH says flaxseed and flaxseed oil may cause bloating, fullness and diarrhea, and notes possible interactions with blood-thinning drugs. Ask a doctor or pharmacist if you take medicine.

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In this article
  1. What side effects does flaxseed have?
  2. Are raw flaxseeds safe?
  3. Does flaxseed interact with medicines?
  4. Is it safe in pregnancy?
  5. What we could not confirm

What side effects does flaxseed have?

NCCIH, part of NIH, says flaxseed and flaxseed oil may cause uncomfortable digestive symptoms like bloating, fullness, and diarrhea. That statement is about flaxseed products in general. NCCIH does not mention flaxseed milk, so we cannot say how much of it applies to a glass of flaxseed milk.

Are raw flaxseeds safe?

NCCIH advises not to eat raw or unripe flaxseeds because they may contain potentially toxic compounds.

Does flaxseed interact with medicines?

NCCIH notes theoretical interactions with anticoagulant and antiplatelet drugs and advises talking with a health care provider before using flaxseed if you take any medicine.

Is it safe in pregnancy?

NCCIH says some studies of flaxseed during pregnancy suggest it is possibly unsafe, though the evidence is not conclusive, and little is known about use while breastfeeding. Ask your doctor first.

What we could not confirm

The NCCIH page does not discuss allergies or the amount of flaxseed in commercial flaxseed milk. Check the label of your product.

People also ask

What are the side effects of flaxseed milk?

No official source covers flaxseed milk. NCCIH says flaxseed may cause bloating, fullness and diarrhea.

Can flaxseed interact with medications?

NCCIH notes theoretical interactions with anticoagulant and antiplatelet drugs; talk to a health care provider.

Is flaxseed safe during pregnancy?

NCCIH says some studies suggest it is possibly unsafe, but the evidence is not conclusive.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. NCCIH (NIH): Flaxseed and Flaxseed Oil, read 5 Nov 2026
Written by Drinks Type Editorial Team · Published Sep 8, 2025 · Updated Nov 5, 2026
About · How we verify this · Editorial policy · Corrections

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