Does Boiled Onion Water Help With Colic?

The inconsolable crying associated with infantile colic is a source of intense stress for many new parents. Colic is clinically defined by the “Rule of Threes”: a baby cries for more than three hours a day, for at least three days a week, and for three weeks or more. In the search for relief, caregivers often turn to traditional home remedies, one of which is offering a baby boiled onion water. This practice suggests a simple, natural solution to digestive distress, prompting closer examination of its safety and effectiveness.

Traditional Use Versus Scientific Assessment

The belief that boiled onion water can soothe colic stems from the onion’s historical use as a digestive aid in folk medicine. Proponents suggest that the liquid extract helps babies pass gas, thereby relieving the abdominal pressure associated with crying spells. Onions are rich in bioflavonoids, such as quercetin, which is known for its anti-inflammatory and antioxidant effects in adult studies.

The theoretical mechanism suggests these compounds might act as an anti-spasmodic, relaxing the infant’s digestive tract muscles. However, this proposed effect remains entirely theoretical, and there is no clinical evidence to support the use of boiled onion water specifically for treating infant colic. Any perceived calming effect is likely due to the warm liquid, the comfort of a caregiver’s attention, or the natural, self-limiting course of colic, which typically resolves by three to four months of age.

Safety Concerns and Administration Guidelines

Introducing any liquid other than breast milk or formula to an infant, especially those under six months of age, introduces significant safety concerns. The primary risk associated with giving plain or onion-infused water to young babies is the potential for electrolyte imbalance. Infants have small stomachs and developing kidneys, making them vulnerable to water intoxication.

Excessive water intake can dilute the body’s sodium levels, leading to hyponatremia, which can cause serious complications such as seizures, brain swelling, and neural damage. Administering water also risks displacing the essential nutrients and calories provided by formula or breast milk, which are necessary for healthy growth and development. Onions are also known to cause gas in some individuals, potentially exacerbating the discomfort the remedy is meant to address.

If a caregiver chooses to prepare this traditional remedy, the typical anecdotal method involves boiling a piece of onion in water, straining the liquid, and ensuring it is completely cooled before offering a very small amount. However, due to the substantial risks of electrolyte disturbance and nutrient displacement, a pediatrician must be consulted before introducing any non-formula or non-breast milk substance to an infant.

Established Methods for Soothing Colic

Caregivers seeking relief from colic are encouraged to use evidence-based methods that pediatricians recommend. One highly effective strategy involves the “Five S’s” approach, designed to mimic the comforting sensory experiences the baby had in the womb.

The Five S’s

  • Swaddling the infant snugly.
  • Holding them in a side or stomach position.
  • Making a shushing sound.
  • Providing gentle swinging or rhythmic motion.
  • Allowing them to suck on a pacifier or breast.

Other physical methods include gentle abdominal massage or lying the baby tummy-down across the caregiver’s knees while gently rubbing their back. Simple changes to feeding practices, such as ensuring the baby is burped frequently and fed in a more upright position, can help minimize air intake.

For some infants, dietary modifications can be beneficial. If breastfeeding, the mother may be advised to temporarily eliminate common irritants like dairy, caffeine, or certain gassy vegetables under medical guidance. In formula-fed infants, a switch to a hydrolyzed protein formula may provide relief. Some studies indicate that specific probiotics, such as Lactobacillus reuteri, may also help reduce crying time.