What does fact checked mean?
At Healthfully, we strive to deliver objective content that is accurate and up-to-date. Our team periodically reviews articles in order to ensure content quality. The sources cited below consist of evidence from peer-reviewed journals, prominent medical organizations, academic associations, and government data.
- Applied Physiology, Nutrition, and Metabolism: Experimental and Clinical Research Findings on the Cardiovascular Benefits of Consuming Flaxseed
- Applied Physiology, Nutrition, and Metabolism: Experimental and Clinical Research Findings on the Cardiovascular Benefits of Consuming Flaxseed
- American Heart Association: Eating Flaxseed May Lower Blood Pressure
- MedlinePlus: Flaxseed
- Linus Pauling Institute: Lignans
The information contained on this site is for informational purposes only, and should not be used as a substitute for the advice of a professional health care provider. Please check with the appropriate physician regarding health questions and concerns. Although we strive to deliver accurate and up-to-date information, no guarantee to that effect is made.
Benefits of Ground Flaxseed
Flaxseed is an ancient food, prized for its healing properties as far back as 650 B.C. Today, most people eat flaxseed because it is a source of healthy fats, fiber and other disease-fighting nutrients. Flaxseed can be eaten whole or ground, but if you eat the whole seeds, be sure to chew them carefully to break the seed coat and release the nutrients.
Heart Smart
Flaxseed is low in saturated fat and high in cholesterol-lowering unsaturated fat. It's also a good source of omega-3 fatty acids, which are recommended as part of a heart-healthy diet. An article published in "Applied Physiology, Nutrition, and Metabolism" in October 2009 suggests that eating flaxseed daily may provide cardiovascular benefits by reducing cholesterol levels and inflammation 1. The American Heart Association also reports that the daily consumption of flaxseed may help reduce blood pressure 2.
Fiber Benefits
Calories in Two Tablespoons of Ground Flaxseed
Learn More
Two tablespoons of flaxseed provide about 4 grams of fiber, which is important for keeping your gastrointestinal system healthy. Much of the fiber in flax is soluble fiber, which attracts water and forms a gel. Soluble fiber slows down the emptying of your stomach, making you feel full longer, and it helps to stabilize your blood sugar. According to MedlinePlus, flaxseed might be also helpful for reducing your appetite and helping you to eat less. In addition, it can help lower hemoglobin A1c, which is a measure of the three-month glucose average in diabetics.
- Two tablespoons of flaxseed provide about 4 grams of fiber, which is important for keeping your gastrointestinal system healthy.
Flaxseed and Cancer Prevention
Flaxseed also contains compounds called lignans, which are phytoestrogens, or plant substances that act like estrogen. Phytoestrogens have been studied for their potential role in reducing some cancers, especially breast, colon and prostate cancer. At this time, results are conflicting, and research on the role of lignans and cancer prevention isn’t clear.
How and How Much
Vitamins & Flax Seeds
Learn More
To get the cardiovascular and fiber benefits of flaxseed, the University of Maryland Medical Center recommends that you eat about 1 tablespoon of ground flaxseed two to three times each day 4. It's best if you grind the seeds just before you eat them, and drink lots of water. In addition, make sure that you eat the ground flaxseed within 24 hours; after that, it starts to lose its active compounds.
Flaxseeds can add a little crunch when sprinkled on cereal, oatmeal or yogurt. Or try sprinkling them on roasted vegetables. Many people also like to add them to the batter or dough for baked goods, such as breads and muffins. One tablespoon of flaxseed mixed with 2 to 3 tablespoons of hot water will form a thick gel, which you can use as an egg replacement in baking.
- To get the cardiovascular and fiber benefits of flaxseed, the University of Maryland Medical Center recommends that you eat about 1 tablespoon of ground flaxseed two to three times each day 4.
Related Articles
References
- Applied Physiology, Nutrition, and Metabolism: Experimental and Clinical Research Findings on the Cardiovascular Benefits of Consuming Flaxseed
- American Heart Association: Eating Flaxseed May Lower Blood Pressure
- Linus Pauling Institute: Lignans
- University of Maryland Medical Center: Flaxseed
- Goyal A, Sharma V, Upadhyay N, Gill S, Sihag M. Flax and flaxseed oil: an ancient medicine & modern functional food. J Food Sci Technol. 2014;51(9):1633-53. doi:10.1007/s13197-013-1247-9
- Seeds, flaxseed. FoodData Central. U.S. Department of Agriculture. Published April 1, 2019.
- Ibrügger S, Kristensen M, Mikkelsen MS, Astrup A. Flaxseed dietary fiber supplements for suppression of appetite and food intake. Appetite. 2012;58(2):490-5. doi:10.1016/j.appet.2011.12.024
- Galgani J, Aguirre C, Díaz E. Acute effect of meal glycemic index and glycemic load on blood glucose and insulin responses in humans. Nutr J. 2006;5:22. doi:10.1186/1475-2891-5-22
- Rodriguez-Leyva D, Dupasquier CM, McCullough R, Pierce GN. The cardiovascular effects of flaxseed and its omega-3 fatty acid, alpha-linolenic acid. Can J Cardiol. 2010;26(9):489-96. doi:10.1016/s0828-282x(10)70455-4
- Dietary reference intakes (DRIs): Recommended dietary allowances and adequate intakes, Vitamins. National Library of Medicine, National Institutes of Health.
- Frank LL. Thiamin in clinical practice. JPEN J Parenter Enteral Nutr. 2015;39(5):503-20. doi:10.1177/0148607114565245
- Ghazanfarpour M, Sadeghi R, Latifnejad Roudsari R, et al. Effects of flaxseed and Hypericum perforatum on hot flash, vaginal atrophy and estrogen-dependent cancers in menopausal women: A systematic review and meta-analysis. Avicenna J Phytomed. 2016;6(3):273-83.
- Soeken KL, Miller SA, Ernst E. Herbal medicines for the treatment of rheumatoid arthritis: a systematic review. Rheumatology (Oxford). 2003;42(5):652-9. doi:10.1093/rheumatology/keg183
- Flaxseed and Flaxseed Oil. National Institutes of Health National Center for Complementary and Integrative Health. Updated September 2016.
- Parikh M, Maddaford TG, Austria JA, Aliani M, Netticadan T, Pierce GN. Dietary flaxseed as a strategy for improving human health. Nutrients. 2019;11(5):1171. doi:10.3390/nu11051171
- Flower G, Fritz H, Balneaves LG, et al. Flax and breast cancer: A systematic review. Integr Cancer Ther. 2014;13(3):181-92. doi:10.1177/1534735413502076
- Kajla P, Sharma A, Sood DR. Flaxseed—a potential functional food source. J Food Sci Technol. 2015;52(4):1857-71. doi:10.1007/s13197-014-1293-y
- Fremont S, Moneret-Vautrin DA, Franck P, et al. Prospective study of sensitization and food allergy to flaxseed in 1317 subjects. Eur Ann Allergy Clin Immunol. 2010;42(3):103-11.
Writer Bio
Anne Danahy is a Boston-based RD/nutritionist who counsels individuals and groups, and writes about healthy eating for wellness and disease management. She holds a Bachelor of Arts from the University of Notre Dame, and a Master of Science in food and nutrition from Framingham State University in Massachusetts.