Fact Check: No Scientific Evidence That Carrying Onions in Pocket Prevents Heatstroke

In an unusual departure from standard health advice, Union Minister of Communications Jyotiraditya Scindia has sparked controversy by suggesting that carrying an onion in one’s pocket can provide protection against extreme heat.

During an April 26 event in Pichhore, Madhya Pradesh, Scindia demonstrated his unconventional heat management strategy by pulling an onion from his pocket. “I may look young, but my soul is old,” the minister told attendees. “Keep an onion in your pocket; nothing will happen.”

The minister, who represents a region known for its extreme summer temperatures, added that despite traveling without air conditioning even in 51-degree heat, he manages well with this traditional remedy. “In today’s times, everyone roams around carrying gadgets, but the Communications Minister is walking around with an onion,” Scindia remarked, linking the practice to Ayurvedic traditions.

The unusual health advice comes as India battles severe heatwave conditions, with temperatures exceeding 45°C in several states. The India Meteorological Department has issued alerts, and authorities have ordered school closures across multiple regions to protect children from the dangerous heat.

However, medical experts have swiftly rejected Scindia’s claim as scientifically baseless. Dr. Sharath Chandra, a Hyderabad-based general physician, explained that while onions do contain beneficial compounds such as quercetin and sulfur that might offer cooling benefits when consumed, “simply keeping one in your pocket does not have any measurable impact on the body.”

Health professionals are concerned that such myths could create a false sense of security during dangerous heat conditions. They warn that relying on folklore remedies might delay implementation of evidence-based protective measures that are essential during extreme heat events.

Research does confirm that onions offer numerous health benefits—but only when eaten. A 2021 comprehensive review published in the Iranian Journal of Pharmaceutical Research documented that onions contain beneficial compounds with antioxidant and anti-inflammatory properties. However, these benefits apply exclusively to onion consumption, not external carrying.

The minister’s advice appears rooted in longstanding cultural traditions across South Asia, where onions are considered “cooling” foods and are often consumed raw in summer dishes to aid hydration and digestion. In some communities, folklore suggests onions can absorb environmental heat or provide protection from hot winds when carried on one’s person.

Nutritionists acknowledge that onions’ antioxidants, flavonoids, and high water content make them beneficial summer foods when consumed, though they caution against excessive raw consumption due to potential digestive discomfort.

Heatstroke, which the minister claimed his onion remedy could prevent, is a potentially life-threatening condition that occurs when the body cannot regulate its temperature. According to the World Health Organization and India’s National Disaster Management Authority, prolonged exposure to high temperatures can overwhelm the body’s cooling mechanisms, leading to heat exhaustion or potentially fatal heatstroke if left untreated.

Harvard researchers have noted that heat exposure can precipitate kidney injury, reduce sleep quality, and exacerbate chronic conditions including diabetes, respiratory illnesses, and mental health conditions.

Instead of pocket onions, health experts recommend scientifically validated heat protection strategies. Dr. Chandra advises maintaining hydration by drinking plenty of water throughout the day, avoiding outdoor activities during peak sun hours (11 am to 4 pm), wearing light-colored and loose-fitting clothing, using cooling methods such as damp cloths or fans, and remaining in shaded or air-conditioned environments when possible.

Medical professionals emphasize the importance of recognizing early warning signs of heat-related illness, including dizziness, nausea, headache, and excessive sweating, and seeking immediate medical attention if these symptoms appear.

While traditional practices often contain valuable wisdom, in this case, the evidence is clear: an onion in the stomach provides far more benefit than an onion in the pocket when it comes to beating the heat.