Why Does 7UP Help an Upset Stomach? The Science Behind the Relief
April 09, 2025Why Does 7UP Help an Upset Stomach? The Science Behind the Relief
When nausea strikes or your stomach feels like it's doing somersaults, you might have heard the age-old advice to sip on some 7UP. This carbonated beverage has been a go-to remedy for upset stomachs for generations, often recommended by parents and even some healthcare providers. But is there actual science behind this common practice, or is it just another home remedy based on tradition rather than fact? Let's dive into the fizzy world of 7UP and explore why it might actually help calm your digestive distress.
The History of 7UP as a Stomach Remedy
7UP was created in 1929 by Charles Leiper Grigg, originally containing lithium citrate, a mood-stabilizing compound. In fact, the original name was "Bib-Label Lithiated Lemon-Lime Soda," which thankfully was shortened to 7UP. Until 1950, lithium remained an ingredient, giving the drink actual medicinal properties that could affect mood and potentially ease stomach discomfort.
After lithium was removed, 7UP continued its reputation as a stomach soother, becoming a staple in many households for treating everything from morning sickness to stomach bugs. Doctors would often recommend clear liquids including 7UP for patients recovering from stomach ailments, cementing its place in medical folklore.
From Medicine to Mainstream
What's fascinating is how 7UP transitioned from a product with actual pharmaceutical ingredients to a beverage that continued to be used medicinally despite formula changes. This persistence speaks to either effective marketing or genuine relief properties in the remaining ingredients. The cultural association between 7UP and stomach relief became so strong that many people don't question why they reach for this specific soda when feeling unwell—it's simply what they've always done.
The Components of 7UP That May Help
Modern 7UP contains a relatively simple list of ingredients: carbonated water, high fructose corn syrup (or sugar in some countries), citric acid, natural flavors, and sodium citrate. While it no longer contains lithium, several of these components might actually contribute to stomach relief.
Carbonation: Bubbles That Soothe
The carbonation in 7UP creates tiny bubbles that can help you burp, potentially relieving pressure from gas buildup in your stomach. This release of gas can provide immediate comfort when you're feeling bloated or nauseated. Additionally, some research suggests that carbonated water itself might improve digestion by enhancing the function of the muscles that move food through your digestive system.
However, it's worth noting that for some individuals, especially those with acid reflux or GERD, carbonation might actually worsen symptoms by increasing pressure in the stomach and pushing stomach acid up into the esophagus. This highlights how digestive remedies aren't one-size-fits-all.
Sodium Citrate: The Unsung Hero
Sodium citrate, a common ingredient in 7UP, serves as a pH buffer and can help neutralize excess stomach acid. This acid-reducing effect is similar to what you'd find in some over-the-counter antacids, though in a much milder form. For people experiencing acid-related stomach discomfort, this buffering action might provide genuine relief.
Simple Sugars: Quick Energy
The sugar in 7UP provides easily digestible carbohydrates that can give your body quick energy when you haven't been able to keep other foods down. When you're recovering from a stomach illness, these simple sugars can help maintain your blood glucose levels without overtaxing your digestive system. However, the high sugar content is also a reason to consume 7UP in moderation, especially for those with diabetes or blood sugar concerns.
The Psychology of Stomach Relief
Beyond the physical components, there's a strong psychological element to 7UP's effectiveness. The placebo effect is powerful when it comes to digestive issues, which are highly influenced by the brain-gut connection.
Comfort in Familiarity
If you grew up being given 7UP when sick, the mere act of drinking it can trigger positive associations and expectations of relief. This psychological comfort can actually reduce stress hormones that might be exacerbating your stomach issues. Your brain essentially tells your gut, "Help is on the way," and your body responds accordingly.
The ritual of slowly sipping a cold, familiar beverage can also be calming, reducing anxiety that might be contributing to your nausea or discomfort. Never underestimate the power of these psychological factors in physical symptom relief.
Scientific Perspective on Carbonated Beverages for Upset Stomachs
From a strictly scientific standpoint, the evidence for carbonated beverages as stomach remedies is mixed. Some studies suggest benefits, while others indicate potential drawbacks depending on the specific digestive issue at hand.
What Research Shows
Research on carbonated water has shown that it may improve swallowing ability, increase feelings of fullness, and help with constipation by improving digestive function. A study published in the European Journal of Gastroenterology and Hepatology found that carbonated water improved indigestion, constipation, and gallbladder emptying in some patients.
However, when it comes to sugary carbonated drinks specifically, the research is less favorable. The high sugar content can potentially draw fluid into the intestines, worsening diarrhea in some cases. Additionally, the caffeine in some sodas (though not in 7UP) can stimulate acid production and intestinal activity, potentially aggravating certain digestive conditions.
The BRAT Diet Connection
Healthcare providers often recommend the BRAT diet (Bananas, Rice, Applesauce, Toast) for upset stomachs, along with clear liquids. 7UP falls into this "clear liquids" category, which is generally recommended because these substances are easy to digest and unlikely to worsen symptoms. The simplicity of 7UP's ingredients aligns with the principle of giving your digestive system minimal work to do while recovering.
For those with sensitive digestive systems or conditions like IBS, finding gentle, easily tolerated foods and beverages is crucial. This is where specialized products like Casa de Sante's low FODMAP certified protein powders can be particularly valuable. These gut-friendly formulations are designed to minimize digestive distress while providing essential nutrition, making them an excellent option when recovering from stomach upset or managing chronic digestive conditions.
Better Alternatives for Stomach Relief
While 7UP might provide temporary relief for some, there are arguably more effective options with fewer downsides for treating an upset stomach.
Ginger-Based Remedies
Ginger has well-documented anti-nausea properties backed by numerous scientific studies. Ginger tea, ginger ale (with real ginger), or even ginger supplements can be more effective than 7UP for treating nausea and stomach discomfort. The active compounds in ginger, including gingerols and shogaols, have been shown to help with various forms of nausea, from morning sickness to chemotherapy-induced nausea.
For a simple yet effective stomach-soothing beverage, you might try this low FODMAP ginger tea recipe:
Soothing Low FODMAP Ginger Tea
A gentle, warming tea that calms upset stomachs without triggering digestive symptoms.
Ingredients:
- 1-inch piece of fresh ginger, thinly sliced
- 2 cups water
- 1 teaspoon maple syrup (optional)
- Fresh lemon slice (optional)
Instructions:
- Place sliced ginger in a small pot with water.
- Bring to a boil, then reduce heat and simmer for 5-10 minutes.
- Strain the tea into a mug.
- Add maple syrup if desired and a slice of lemon for extra flavor.
- Sip slowly while warm.
Prep Time: 2 minutes
Cook Time: 10 minutes
Yield: 2 cups
Cuisine: Therapeutic
Electrolyte Solutions
For stomach issues involving fluid loss, such as diarrhea or vomiting, electrolyte solutions like Pedialyte are generally more effective than 7UP. These products are specifically formulated to replace lost electrolytes and provide appropriate hydration without excess sugar. Some digestive health specialists recommend combining electrolyte solutions with digestive enzymes like those offered by Casa de Sante, which can help ease the digestive process during recovery.
Probiotics and prebiotics can also play a crucial role in restoring gut health after a stomach illness. Casa de Sante's probiotic and prebiotic supplements are specifically formulated to be gentle on sensitive digestive systems while helping to restore beneficial gut bacteria that may have been disrupted during illness.
When to Skip the 7UP
Despite its potential benefits, there are situations where 7UP might not be the best choice for an upset stomach.
Specific Conditions Where 7UP May Not Help
For individuals with diabetes, the high sugar content in regular 7UP can cause blood sugar spikes. Those with GERD or acid reflux might find that the carbonation exacerbates their symptoms by increasing pressure in the stomach. People with irritable bowel syndrome (IBS) might react poorly to the high FODMAP content from the high fructose corn syrup in 7UP.
In these cases, working with a healthcare provider to develop a personalized approach to digestive health is important. Many find that personalized meal plans, like those offered through Casa de Sante's digestive health programs, can make a significant difference in managing chronic digestive conditions while still providing comfort during flare-ups.
The Verdict: Does 7UP Actually Help?
So, does 7UP truly help an upset stomach? The answer is nuanced. For mild, temporary stomach discomfort, 7UP might provide some relief through its carbonation, sodium citrate, and the psychological comfort it offers. The gentle nature of its ingredients and the slow intake of fluids can indeed be soothing for certain types of stomach distress.
However, it's not a cure-all, and in some cases, it might even worsen symptoms. The high sugar content, in particular, makes it less than ideal as a regular remedy. For those with recurring digestive issues, exploring more targeted approaches—such as low FODMAP diets, proper hydration with electrolytes, and specific supplements like herbal laxatives for constipation—is likely to be more effective in the long run.
Ultimately, the best approach to stomach discomfort involves listening to your body, staying hydrated with appropriate fluids, and seeking medical advice for persistent or severe symptoms. While 7UP might remain a comforting tradition, understanding the science behind it helps us make more informed choices about when to reach for that familiar green bottle and when to explore other options for digestive relief.