When to stop and get medical care. Some symptoms need a doctor, not a routine. Contact a medical provider promptly if you have severe abdominal pain; fever or persistent vomiting; rectal bleeding or black, tarry stool; unexplained weight loss; a new, unexplained change in bowel habits, especially from age 45 onward; or recent abdominal surgery within the last six weeks. If symptoms are severe, call your physician or go to the emergency department.
When a laxative from the pharmacy starts to feel like too much, a lot of people switch to something natural. A tea, a fiber supplement, a bowl of prunes. It feels gentler and it feels safer, because it came from a plant rather than a pharmacy shelf.
In my practice, the three that people most often arrive with are fiber, senna teas and prunes. By the time they reach me, most have tried more than one, and it has not been enough.
“Natural” describes where something came from. It says nothing about what happens once it reaches your bowel, and that is the part that matters.
Natural describes the source, not the mechanism
Laxatives sort by what they do, and the natural ones fall into the same groups as the pharmacy ones.
Stimulants prompt the muscle in the bowel wall to contract. Senna belongs here, along with aloe- and cascara-type preparations. All three are built on the same group of plant compounds, the anthraquinones. Many “smooth move” teas are senna teas, whatever the packaging says.
Osmotics draw water into the stool and hold it there, which softens it. Magnesium works this way. Prunes are often put here because they carry sorbitol, a sugar alcohol the gut absorbs poorly, which holds water in the bowel on its own. In the human trials, though, prunes added stool weight rather than stool water, so most of what they do looks like bulk. Which component does the work has not been settled.
Bulk agents add mass for the colon to move. A fuller stool stretches the colon wall, and that stretch is what prompts the muscle to push it along. Fiber, including psyllium, belongs here. Which kind of fiber you use matters more than how much.
Gentler is not the same as different
A senna tea is a stimulant laxative. Brewing it from a leaf does not change that. It acts on the bowel the way any stimulant does, so what holds for stimulants holds for it.
That is not a mark against it. The current gastroenterology guideline suggests senna for chronic constipation, and magnesium oxide as well. Both are conditional recommendations, resting on low-certainty evidence for senna and very low-certainty evidence for magnesium oxide. A critical review of the stimulant laxatives, senna among them, found no convincing evidence that they damage the gut.
Magnesium carries a specific caution. The kidneys are what clear excess magnesium from the body, so when they are not working well it can build up. If you have kidney disease, check with your physician before taking any magnesium product.
Prunes and kiwifruit sit at the food end of the range. In a meta-analysis of food trials, fruit produced a higher stool frequency than psyllium, kiwifruit in particular, while prunes showed no difference from psyllium. The authors also note how few trials of foods exist.
What a natural laxative still doesn’t do
Whatever its source, a laxative moves today’s stool. It does not change what is producing the constipation. That is the same point I make about laxatives in general, and a natural label does not change it.
None of this makes a laxative the wrong choice. When you need to go, you need to go, and using one to get through a bad stretch is reasonable. That is as true of a senna tea as of anything from the pharmacy. Being comfortable matters.
What a laxative cannot do is tell you why you needed it. Constipation is frequently downstream of something else, and switching from a pharmacy product to a natural one leaves that question exactly where it was.
Where the herbs I use fit
A senna tea does one thing. It moves today’s stool.
The herbs I use are chosen to work on two levels at once. Locally, they are there to help the bowel move, to moisten, or to ease, depending on what a particular person needs. At the same time, they are chosen for what is complicating the picture: the stress, the poor nourishment, the slow motility, the tension. Constipation is not a disorder on its own. It is a symptom of something broader, and the herbs are picked with what is driving it in mind.
The aim is to restore function rather than to supply it temporarily. I want the people I work with to be able to do more of it themselves, day to day, and to rely less on what I provide. That is also why anything I introduce should come with a plan for stepping it back down.
The key takeaway
“Natural” tells you where a laxative came from. What it does depends on its group: it prompts the muscle, draws water in, or adds bulk. Either way, it does not answer why you need it.
Wondering what is driving yours?
If you have worked through the natural options and still need help to go, a discovery call is a free, short conversation about what might be driving it. Book one at dryarondaom.com/discovery.
Dr. Yaron practices in Maryland, Virginia, DC, Georgia, and New York.
References
- Chang L, Chey WD, Imdad A, et al. American Gastroenterological Association-American College of Gastroenterology Clinical Practice Guideline: Pharmacological Management of Chronic Idiopathic Constipation. Gastroenterology. 2023;164(7):1086-1106. PMID: 37211380.
- Bharucha AE, Lacy BE. Mechanisms, Evaluation, and Management of Chronic Constipation. Gastroenterology. 2020;158(5):1232-1249.e3. PMID: 31945360.
- Whorwell P, Lange R, Scarpignato C. Review article: do stimulant laxatives damage the gut? A critical analysis of current knowledge. Therap Adv Gastroenterol. 2024;17:17562848241249664. PMID: 38887508.
- Van Der Schoot A, Katsirma Z, Whelan K, Dimidi E. Systematic review and meta-analysis: Foods, drinks and diets and their effect on chronic constipation in adults. Aliment Pharmacol Ther. 2024;59(2):157-174. PMID: 37905980.
- Katsirma Z, Dimidi E, Rodriguez-Mateos A, Whelan K. Fruits and their impact on the gut microbiota, gut motility and constipation. Food Funct. 2021;12(19):8850-8866. PMID: 34505614.
DISCLAIMER: The information in this article is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Dr. Yaron Cohen is a licensed acupuncturist and a doctor of acupuncture and Oriental medicine (DAOM) practicing integrative care. This content is general health education. It is not a substitute for consultation, diagnosis, or treatment from your physician or another qualified healthcare provider, and reading it does not create a patient-practitioner relationship. Individual medical needs vary. Always consult your physician about any medical condition, symptoms, or treatment options. Do not start, stop, or change any prescribed medication, and do not change any treatment directed by your physician, based on information you have read here. Do not disregard or delay seeking professional medical advice because of something you have read here.
