Ice Cream’s Summer Cooling Effect: Sensation Rather Than Science

As temperatures soar during summer months, many people reach for ice cream as a way to beat the heat. However, the popular belief that this frozen treat helps cool the body has been challenged by health experts who say the effect is merely temporary and superficial.

A viral Instagram video posted by Dr. Rohit Madhav Sane, founder and managing director at Vaidya Sane Ayurved Lab Ltd, has garnered over 13,300 views and sparked renewed discussion about ice cream’s actual effects on body temperature. In the video, Dr. Sane calls the cooling effect of ice cream “the biggest myth” of summer, claiming that what feels cold initially may actually generate more heat in the body afterward.

The claim centers on ice cream’s high sugar and saturated fat content, which Dr. Sane suggests triggers insulin spikes and slows digestion, ultimately leading to feelings of heaviness and lethargy. Drawing from Ayurvedic principles, he adds that cold foods might weaken the body’s digestive “fire,” potentially compromising digestion and immunity.

Scientific evidence, however, paints a more nuanced picture. A 2013 review on cold ingestion and thermoregulation indicates that the cooling sensation from ice cream is primarily perceptual rather than physiological. The pleasant feeling comes from stimulating cold receptors in the mouth, which the brain associates with relief and refreshment—not from any actual lowering of core body temperature.

“Cooling of the mouth or oropharynx by cold drinks and foods may be perceived as pleasant because the cool stimulus satiates thirst,” the review notes, highlighting how humans perceive cold differently depending on where it’s applied. While cold on skin often triggers discomfort and protective responses like shivering, cold stimuli in the mouth are associated with relief and thirst satisfaction.

Research on human metabolism further confirms that the body actively works to maintain its internal temperature regardless of what we consume. A 2016 study found that when exposed to cold, the body increases cold-induced thermogenesis (CIT)—its mechanism for generating heat in response to cold environments. This process operates independently from diet-induced thermogenesis (DIT), the heat produced after eating.

More recent studies support this understanding, noting that cold exposure activates brown adipose tissue (BAT), a metabolically active tissue that generates heat. The evidence consistently shows that rather than allowing core temperature to drop, the body compensates by producing more heat when confronted with cold stimuli—whether external or ingested.

Rajeshwari Panda, Head of Nutrition and Dietetics at Fortis Hospital in Mulund, confirms these findings. “Ice cream just cools the surface of the mouth, not the inside of the body,” she explains. “The sensation fades quickly and does not impact core body temperature.”

Panda adds that digestion itself is a heat-producing process. “Any reaction in the body produces heat, and digestion is no exception,” she says, noting that foods high in sugar and fat, like ice cream, may actually require more energy to break down, generating a small amount of heat. However, this heat production is normal and necessary for digestion and doesn’t significantly raise body temperature either.

For those genuinely looking to stay cool during hot weather, experts suggest focusing on hydration and balanced nutrition rather than temporary cold sensations. Water-rich and fiber-rich foods like fruits, vegetables, and nuts help the body maintain proper hydration. Panda specifically mentions ingredients like sabja (basil) seeds that can help the body retain water for longer periods.

The market for cooling foods and beverages peaks during summer months, with ice cream sales typically jumping 30-45% compared to winter months in many regions. The global ice cream market, valued at approximately $79 billion in 2022, continues to grow despite these nutritional insights, highlighting the disconnect between consumer behavior and scientific understanding.

While ice cream remains a beloved summer treat, its reputation as a body coolant appears to be more marketing myth than physiological fact. The momentary pleasure of its cool sensation might satisfy cravings, but for those truly looking to manage summer heat, experts continue to recommend proper hydration, balanced nutrition, and moderation in consuming sugary treats—regardless of their temperature.