Castor oil is a dense, odorless oil derived from the seeds of the castor plant. Its origins can be traced back to ancient Egypt, where it was believed to be used as fuel for lamps and for its medicinal and cosmetic properties. Cleopatra is said to have used it to enhance the whiteness of her eyes.
Today, the majority of castor oil is produced in India. It remains a popular remedy for constipation and is widely used in skin and hair care products. Additionally, it is a component in motor oil, among other uses. The FDA acknowledges its safety for constipation relief, although researchers continue to explore other potential health benefits.
Nutritional Profile of Castor Oil
Castor oil is not considered an edible oil due to its highly unpleasant taste. However, some individuals consume small quantities for medicinal purposes.
According to MyFitnessPal, a tablespoon of castor oil contains:
Calories: 120
Protein: 0 grams
Fat: 14 grams
Carbohydrates: 0 grams
Fiber: 0 grams
Sugar: 0 grams
It also includes:
Vitamin E
Omega-9 fatty acids
Omega-6 fatty acids
The active component in castor oil is ricinoleic acid, a fatty acid.
Health Benefits of Castor Oil
Research on the traditional uses of castor oil is limited, but it is known to offer several potential health benefits:
Castor Oil for Constipation
The FDA’s only approved health application for castor oil is as a natural laxative for temporary constipation relief.
“Its ricinoleic acid attaches to a receptor in your intestines. This causes the muscles to contract, pushing poop through your colon.”
It is also occasionally used for colon cleansing prior to medical procedures like colonoscopies. However, other prescribed laxatives might provide more effective results. Prolonged use of castor oil for constipation can lead to side effects such as cramps and bloating. Consult a doctor if constipation persists beyond a few days.
Inducing Labour with Castor Oil
Castor oil has been used for centuries to assist in labour and delivery. A 1999 survey indicated that 93% of U.S. midwives utilised it to induce labour. While some studies suggest it may be effective, others have found no significant impact. Pregnant women should not use castor oil without medical advice.
Anti-inflammatory Properties
Animal studies have shown that ricinoleic acid may help reduce swelling and pain associated with inflammation when applied topically. One human study found it as effective as a nonsteroidal anti-inflammatory drug (NSAID) for treating knee arthritis symptoms. However, further research is necessary.
Wound Healing Potential
Castor oil possesses antibacterial and antimicrobial properties that may accelerate wound healing, especially when combined with other substances. Venelex, an ointment containing castor oil and balsam Peru, is used to treat skin and pressure wounds.
“The oil may help to prevent infection by keeping the wounds moist, while the ricinoleic acid reduces inflammation.”
However, it is advisable to use castor oil for wound care only under medical supervision, rather than for minor cuts or burns at home.
Benefits for Skin
Rich in fatty acids, castor oil has moisturizing properties and is found in many commercial beauty products. It can also be used in its natural form, free from perfumes and dyes. Due to potential skin irritation, it is recommended to dilute castor oil with a neutral carrier oil.
Some believe its antibacterial, anti-inflammatory, and moisturizing effects may combat acne, although there is no scientific evidence to support this claim.
Hair Growth and Scalp Health
Castor oil is often marketed for treating dry scalp, promoting hair growth, and reducing dandruff. While it may moisturize the scalp and hair, there is no scientific backing for claims that it treats dandruff or stimulates hair growth. In rare cases, using castor oil on hair can cause felting, a condition where hair becomes so matted it must be cut off.
Applying Castor Oil to the Belly Button
The idea of applying castor oil to the belly button stems from an Ayurvedic practice suggesting a Pechoti gland near the navel can absorb essential oils. However, there is no scientific proof of this gland’s existence. While applying castor oil to the belly button is unlikely to cause harm, it also does not provide any proven benefits.
Castor Oil Packs
Some individuals use castor oil packs for remedies like constipation, dry skin, arthritis, or menstrual cramps. These packs are pieces of fabric soaked in castor oil, applied to the skin with or without a heating pad. Although a heated pad may offer soothing effects, there is limited research to support the benefits of castor oil packs.
