Drinking carbonated cola to soothe an upset stomach is a common folk remedy, though the science behind this relief is often questioned. While many people find temporary comfort in the sweet, fizzy drink, it is not a medically endorsed solution for nausea. Understanding why this practice persists requires examining how the ingredients of carbonated soda interact with the digestive system. This reveals the limited benefits and potential drawbacks of using soda as a stomach-settling aid.
The Primary Components of Carbonated Soda
A typical cola contains three main components that influence the digestive system: a high concentration of sugar, phosphoric acid, and carbonation. The sugar content, often in the form of high fructose corn syrup, provides a rapid source of simple carbohydrates.
The acidity comes primarily from added phosphoric acid, which contributes to the drink’s tangy flavor and acts as a preservative. This acid gives the soda an approximate pH level of 2.5, similar to that of lemon juice or the stomach’s own hydrochloric acid. Finally, the carbonation is the result of dissolved carbon dioxide gas, which creates the characteristic fizz and bubbles.
How Soda Provides Temporary Symptom Relief
The carbonation in the soda can stimulate the stomach and provide a quick, temporary sense of relief from discomfort. When the dissolved carbon dioxide gas enters the stomach, it encourages eructation (burping), which helps to release trapped air. This expulsion of gas can reduce the sensation of bloating and fullness that often accompanies mild indigestion or nausea.
The second source of relief is the high sugar content, which offers a rapid influx of glucose into the bloodstream. Nausea can sometimes be caused by or worsened by a mild state of hypoglycemia, or low blood sugar. The simple sugar provides a quick energy boost, counteracting this possible underlying cause of the queasy feeling.
When Soda Consumption Can Worsen Symptoms
Despite the momentary comfort, the components of soda can easily worsen digestive distress. The high sugar concentration can trigger an osmotic effect, meaning the dense solution draws water into the digestive tract. This rush of water can increase the volume and liquidity of stool, potentially leading to or worsening diarrhea and dehydration.
The presence of phosphoric acid also poses a problem for a sensitive or irritated stomach lining. Its high acidity can irritate the esophageal sphincter, possibly exacerbating symptoms of acid reflux or heartburn. Additionally, the caffeine found in many colas is a known stimulant that can increase gastric acid secretion and gut motility, further irritating the digestive system.
Recommended Alternatives for Settling the Stomach
A more effective strategy for managing an upset stomach involves superior hydration and specific natural remedies. Electrolyte solutions, such as sports drinks or pediatric rehydration fluids, are designed to replace lost sodium, potassium, and glucose in balanced amounts. These solutions address the primary concern of dehydration without the excessive sugar load found in soda.
For many, ginger is a well-supported natural option for combating nausea and vomiting. The bioactive compounds in ginger interact with pathways in the gastrointestinal tract and nervous system to exert an anti-nausea effect. Consuming ginger in the form of tea, lozenges, or real ginger ale is a helpful measure.
When consuming any liquid for nausea, clear, non-caffeinated options are best. It is often recommended that these fluids be flat and cold, sipped slowly in small quantities to avoid overwhelming the stomach.