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Our Members Asked:
Which supplements and foods help relieve constipation and which can cause constipation?

Answer:
A number of supplements and foods can help treat or prevent constipation — although some traditionally used supplements may not help and some can worsen this condition.
Sign in as a member for information about supplements that may help, those that might not, and those that can cause constipation or make it worse. Supplements discussed include aloe vera juice, baking soda, berberine, beta-sitosterol, calcium, chlorella, cinnamon, fiber (including glucomannan, ground flaxseed, and psyllium), kiwi fruit powder,iron, magnesium, marshmallow root, N-acetyl cysteine (NAC), nattokinase, probiotics, protein supplements, rhubarb, senna, Triphala, and vitamin D. Also, find out which fiber-containing fruits might help.
In addition the results of its expert testing, ConsumerLab uses only high-quality, evidence based, information sources. These sources include peer-reviewed studies and information from agencies such as the FDA and USDA, and the National Academy of Medicine. On evolving topics, studies from pre-print journals may be sourced. All of our content is reviewed by medical doctors and doctoral-level experts in pharmacology, toxicology, and chemistry. We continually update and medically review our information to keep our content trustworthy, accurate, and reliable. The following sources are referenced in this article:
- Attaluri, Aliment Pharmacol Ther 2011
- Bae, Pediatr Gastroenterol Hepatol Nutr 2014
- Bayer, Nutrients 2022
- Bellini, Nutrients 2021
- Dreher, Nutrients 2018
- European Medicines Agency 2019
- Graham, Bioactive Carbohydrates and Dietary Fibre 2024
- Iizuka, Front Pharmacol 2015
- Kinariwalla, Pediatr Dermatol 2024
- Mukherjee, IJPT 2006
- Munshi, J Ayurveda Integr Med 2011
- MyFoodData.com
- Ponnusankar, J Ethnopharmacol 2011
- Shah, J Med Plants Res 2011
- Vilanova-Sanchez, J Pediatr Surg 2018
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24 Comments
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The "Updated" date indicates when new information was most recently added to this article. In the full article, the newest information is highlighted in yellow.
Ella21908
February 07, 20252 dates added to my breakfast also really help!
Reply to this post…
Karen20983
October 29, 2024For me, 3-4 prunes daily are excellent to add to the diet.
kathleen e kerr21020
November 04, 2024Works for me
Reply to this post…
Denise20947
October 23, 2024Eating one kiwi helps me with constipation. And they taste good, too.
Ben21799
January 30, 2025Yep, agree.
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Karen20853
October 12, 2024Chickpeas are the best help for constipation for me. Other than that, a tablespoon of Olive Oil before breakfast helps too.
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Laurie Tsitsivas20778
October 04, 2024Spinach causes bad constipation for me. Figs work great, but gave me cavities. So I found other ways to combat the problem, including exercise.
I used to enjoy ground golden flax in overnight oats with strawberries, but that is a time consuming routine. Pears, nectarines, avocado, and olive oil work for me, and of course certain magnesiums also work great. I never got constipated from cinnamon, the opposite, but it was with apples...apple crisp.
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Teresa20110
July 19, 2024Found that daily psyllium and/or 2 kiwi fruit (with skins) does the trick!
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Nancy19901
July 02, 2024Does anyone know if Magnesium Oxide is safe to take occasionally. It works for me when I take it but not sure of it’s safety.
Please see the "Concerns and Cautions" section of our Magnesium Supplements Review https://www.consumerlab.com/reviews/magnesium-supplement-review/magnesium/#cautions.
Howard, Oakland CA
October 29, 2024Magnesium Oxide is the only thing that consistently works for me
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Linda G.19808
June 21, 2024The best thing I have ever found for constipation is rhubarb supplements. It is very gentle and works better than anything. Unfortunately it cannot be used on a continuing basis.
Thanks for sharing your experience. We've added information about rhubarb for constipation in the following section of our article: https://www.consumerlab.com/answers/supplements-that-cause-constipation/supplements-constipation/#rhubarb
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Alan11056
October 15, 2023I find that about 6-8 prunes daily works for me with very little flatulence.
Michael11057
October 16, 2023Years ago, an octogenarian told me the same thing and he was right. I find that 4-5 prunes does it well. We buy non-sorbate California prunes at Trader Joe. Note: Prune juice does not contain the fiber of actual prunes.
Ellen18573
January 31, 2024Sunsweet Prune Juice is available "with pulp" i.e. fiber.
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Bev11054
October 11, 20231 to 2 tablespoons of flax meal in my morning smoothie or on top of cereal helps me completely avoid constipation, and flax is so healthy.
See our tests of flaxseed products, and our Top Picks, in our Whole, Ground, Milled, and Cracker Flaxseed Review https://www.consumerlab.com/reviews/flaxseed-whole-ground-and-milled/flaxseed-food/#toppicks.
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Michael11053
October 10, 2023I have been taking dextrin (soluble fiber) in my coffee and think it helps, though that's hardly a controlled study, especially as I eat a high-fiber diet anyway. Dextrin is widely sold in the US as Benefiber and is much more pleasant to use than psyllium -- dextrin is soluble, does not thicken, and and is almost tasteless (very slightly sweet). It would be great to see this option discussed in future CL coverage.
Margaret19825
June 23, 2024I use dextrin also, Walmart store brand. Much prefer it to psyllium. I, too, put it in coffee--can't tell it's there.
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Darlene11047
July 22, 2022I'm predictably regular by taking Magnesium Glycinate -- 400 mg.
Bluma19811
June 21, 2024Yes, I’ve been better since taking 400mg of Magnesium
Charlene20991
October 29, 2024Is this a safe amount for daily usage over time? What time of day do you take your Magnesium Glycinate?
See the Dosing and How Much Is Too Much section of the Magnesium Supplements Review https://www.consumerlab.com/reviews/magnesium-supplement-review/magnesium/#dosing.
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