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Frequently Asked Questions


Are flaxseeds safe to eat after heating?

"I am inquiring whether or not it is safe to eat flaxseeds after they have been heated. I read somewhere that it wasn't good for you to heat flax because it changed its make-up if heated. Would you mind directing me to a website, or if you have any information I would greatly appreciate it.

Go to the following page of the Canadian Flax Council's , then scroll down to the pdf file entitled Flaxseed: Storage and Baking Stability. That article is a thorough discussion of the research showing flaxseed's stability during heating. I hope that answers your questions in a reassuring manner.

I frequently bake with ground flaxseed, often mixing a small amount of flaxseed into muffins, pancakes or waffles, quick breads, and the like.Consider purchasing the book Flax your way to Better Health by Jane Reinhardt-Martin, RD and also visiting Jane's web site. She will also be publishing a flax cookbook early in 2004.

It is considered *common wisdom* that heating flaxseed OIL is not a good thing to do. I am still tracking down the actual research that validates this information, but in the meantime, I think it is prudent to only use flaxseed oil without heating it.

faq posted 1/04


Back to Main QandA Page


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Flaxseeds Does consuming flaxseeds potentially interfere with the anti-estrogen effect of Tamoxifen? posted 9/03, updated 2/04, updated 3/05
Flaxseeds Are flaxseeds safe to eat after heating? posted 1/04
Flaxseeds The May 2004 issue of Prevention Magazine says that women with ER+ breast cancer should not be eating flaxseeds. Do you agree? posted 4/04




These questions and answers are intended to be of a general informative nature. Please consult with the Registered Dietitian in your cancer center or your health care provider for nutritional advice that can be individualized to your specific medical condition.

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Phone/Fax: 734/996-9260

P.O. Box 130221, Ann Arbor, MI  48113

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