Castor oil can act as a stimulant laxative to ease constipation. Still, certain individuals—such as those taking particular medicines or who have specific health issues—may need to avoid it.
When you’re constipated, you have bowel movements less often than usual, or your stool is difficult to pass.
Keep in mind that bathroom habits vary from person to person. Some people have several bowel movements a day, while others may have just one daily or go every other day.
Any drop in your usual frequency of bowel movements may indicate constipation. The condition can cause abdominal discomfort and bloating.
Constipation can also result from hard stools, which may make you strain during bowel movements.
Castor oil can be useful as an occasional remedy for constipation.
What is castor oil?
Castor oil is extracted from the castor bean. It has been used as a laxative for millennia, though researchers have only recently started to study its precise effects on the body.
Scientists have found that ricinoleic acid, the primary fatty acid in castor oil, binds to receptors on the smooth muscle cells lining the intestines.
After ricinoleic acid attaches to these receptors, it triggers those muscles to contract and expel stool, much like other stimulant laxatives do. That’s why it may be effective for easing constipation.
Castor oil produces a similar response in the uterus, which is why it has historically been used to induce labor.
Using castor oil
Castor oil is a liquid taken orally. Adults and children ages 12 and older can take between 1 to 4 tablespoons (15 to 60 milliliters) per day for occasional constipation.
The oil often has a strong flavor. To lessen it, chill the bottle in the refrigerator for at least an hour, then mix it into a full glass of fruit juice. Flavored castor oil products are also available for purchase.
Castor oil works rapidly. You should notice effects within 6 to 12 hours after ingestion. Because it acts so fast, it’s not ideal to take it before bedtime, as you might with other laxatives.
Like other stimulant laxatives, castor oil is not intended for long-term use. Prolonged use can weaken intestinal muscle tone and potentially cause chronic constipation. If constipation persists, talk with a healthcare professional.
Safety concerns
Some people may experience adverse effects from castor oil, so it’s not suitable for everyone. This includes:
- pregnant individuals, because castor oil can stimulate uterine contractions
- frequent use in children under 12
- those with certain abdominal conditions, such as inflammatory bowel disease (IBD) or appendicitis
- adults over 60, as castor oil can exacerbate bowel issues
You may need to avoid castor oil if you are taking some medications, including:
- diuretics, which can also lower potassium levels
- some antibiotics, including tetracycline
- anticoagulants (blood thinners)
Besides its unpleasant taste, castor oil has a few drawbacks. Like other stimulant laxatives, it can cause cramping and diarrhea. It may also reduce nutrient absorption in the intestines, although this mainly occurs with excessive use.
Causes of constipation
Constipation is often related to diet. Without enough fiber and fluids, stool can become hard and dry, making it difficult to move through the intestines.
Certain medical conditions can cause constipation. These include:
- multiple sclerosis
- Parkinson’s disease
- stroke
- diabetes
- hypothyroidism
- chronic kidney disease
- bowel cancer
Some medicines may also produce constipation as a side effect. These include:
- antacids
- antiseizure medications
- blood-pressure lowering drugs
- iron supplements
- opioid pain relievers
- sedatives
- certain antidepressants
Occasional constipation affects many people. Pregnant individuals may experience constipation due to hormonal shifts. Bowel movements also tend to slow with age, leaving some older adults chronically constipated.
Preventing constipation
Often, the best way to prevent constipation is through diet and physical activity. Consider adding the following habits to your routine:
- Increase fiber intake: Fiber adds bulk and helps stools pass more easily. Aim for about 14 grams of fiber per 1,000 calories you eat, and drink more fluids to keep stool soft.
- Stay active: Regular physical activity strengthens intestinal muscles, similar to how exercise works muscles in your limbs.
- Maintain a regular bathroom routine: When possible, try to use the toilet at the same time every day. Don’t rush and allow yourself enough time to have a bowel movement.
Other laxatives
There are several types of laxatives for treating constipation. Common options include:
Fiber supplements
Fiber supplements add bulk to stool so it moves more easily. Examples include Metamucil, FiberCon, and Citrucel.
Stool softeners
Stool softeners like Colace and Surfak may help by adding moisture to stool to soften it and reduce straining.
Stimulants
Stimulant laxatives prompt intestinal contractions to expel stool. They are effective but can cause side effects such as diarrhea. Popular brands include Dulcolax, Senokot, and Purge.
Frequently Asked Questions
How much castor oil can adults take for constipation?
Adults may take a single daily dose of 1 to 4 tablespoons (15 to 60 mL) of castor oil for constipation.
How much castor oil can children take for constipation?
Children aged 2 to 12 can take one daily dose of 1 to 3 teaspoons (5 to 15 mL) of castor oil for constipation. It should not be given to children under 2 without consulting a doctor.
Does castor oil clean out your bowels?
Castor oil may help clear the bowels because it stimulates intestinal contractions that move stool along.
Takeaway
Castor oil can be an effective short-term option for relieving constipation by causing intestinal muscles to contract and expel stool.
However, it can cause side effects and is not appropriate for everyone. It should not be used as a long-term solution for constipation.
If you frequently experience constipation and can’t find relief, consult a healthcare provider about other treatment choices.
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