Can I drink sparkling water while sick? Understanding the effects of carbonation

December 29, 2025 •

3 min read

According to studies, sparkling water offers the same hydrating benefits as still water. This raises a common question: Can you drink sparkling water while sick? The answer depends on individual symptoms and tolerance to carbonation.

Quick Summary

Drinking sparkling water while sick is a case-by-case decision. Carbonation might soothe nausea for some, while causing bloating or reflux for others. For those with sensitive stomachs, plain water may be a safer choice during illness.

Key Points

Equivalent Hydration: Sparkling water hydrates as effectively as still water.
Symptom-Dependent: Whether sparkling water is helpful depends on the illness symptoms, especially if your stomach is sensitive.
Upset Stomach Relief: Some find the bubbles soothing for nausea or indigestion, promoting burping.
Risk of Bloating/Reflux: Carbonation can cause bloating, gas, and may aggravate acid reflux or GERD.
Choose Still Water if Uncomfortable: Plain still water is a safer, non-irritating alternative for staying hydrated during illness.
Select Plain Varieties: Choose unsweetened sparkling water and avoid versions with added sugars or artificial sweeteners, which can worsen symptoms.

The Importance of Hydration When Ill

Staying hydrated is crucial when sick. Illnesses, particularly those causing fever, vomiting, or diarrhea, can quickly lead to dehydration. Dehydration can worsen symptoms such as headaches, fatigue, and muscle aches, delaying recovery. Adequate fluid intake helps regulate body temperature, flush out toxins, and keep mucus thin, easing congestion.

Potential Benefits: When Sparkling Water Might Be Helpful

In certain situations, sparkling water can be a beneficial choice during illness. The bubbles offer a refreshing alternative to plain water, which might encourage greater fluid intake if appetite is reduced.

Easing an Upset Stomach

Some individuals, particularly those experiencing mild nausea, may find sparkling water helpful. The gentle bubbles may encourage burping, which can relieve some discomfort. This is an anecdotal remedy, and its effectiveness varies. However, if slow sipping provides relief, it can be a useful option.

Supporting Digestion and Addressing Constipation

Some research suggests that sparkling water may aid with mild indigestion and constipation. The bubbles can stimulate nerves in the gut, which can aid in bowel movements and alleviate digestive issues.

Potential Drawbacks: When to Avoid Sparkling Water

Despite the potential benefits, sparkling water can be counterproductive for others, especially those with sensitive digestive systems or specific symptoms.

Bloating and Gas

The carbon dioxide gas in sparkling water can cause discomfort for some. This added gas may lead to bloating, burping, and feelings of fullness, which are unwelcome when feeling unwell. If prone to gas or experience increased discomfort after drinking carbonated beverages, plain water is recommended.

Aggravating Acid Reflux

Individuals with gastroesophageal reflux disease (GERD) or frequent heartburn should be cautious with sparkling water. The bubbles can increase pressure in the stomach, potentially causing stomach acid to leak into the esophagus and worsen reflux symptoms. This is more likely with higher carbonation levels and burping.

Possible Tooth Enamel Erosion

While a minor concern, plain sparkling water is slightly more acidic than still water due to carbonic acid. Over time, excessive consumption could contribute to the erosion of tooth enamel. This risk is low, and sparkling water is less harmful than sugary sodas.

Sparkling vs. Still Water: A Comparison for Illness


Feature	Sparkling Water	Still Water
Hydration	Equally hydrating, but may cause quicker feelings of fullness, potentially leading to lower overall intake.	Equally hydrating and often easier to drink in larger volumes, promoting steady fluid intake.
Upset Stomach/Nausea	May be soothing for some, encouraging burping and relieving pressure.	Non-irritating and won't add gas to a sensitive stomach. Often recommended for vomiting.
Bloating/Gas	Can cause or worsen feelings of bloating and gas for some individuals.	Does not contribute to gas or bloating, making it a safer option for those with sensitive stomachs.
Acid Reflux	Can trigger or aggravate symptoms by increasing stomach pressure for some individuals.	A neutral, safe choice for those with GERD or acid reflux.
Sore Throat	Can be refreshing, but the carbonation may irritate an inflamed throat for some.	Gentle on a sore throat. Warm options like broth or tea with honey are particularly soothing.

Other Beverages for When You Are Sick

If sparkling water isn't ideal, several other beverages are excellent for hydration and comfort:

Oral Rehydration Solutions (ORS): For severe dehydration, especially with vomiting and diarrhea, an ORS (such as Pedialyte) provides a balanced mix of electrolytes, sugar, and salt.
Herbal Teas: Chamomile, peppermint, and ginger teas can soothe an upset stomach and provide warmth for sore throats.
Broth: Warm chicken or vegetable broth supports hydration, provides nutrients, and is gentle on the stomach.
Water with Lemon and Honey: A classic remedy for a sore throat, this mixture can be comforting. (Note: Do not give honey to children under one year old).
Ice Pops or Chips: If you can't keep liquids down, sucking on ice chips or low-sugar ice pops is a good way to stay hydrated.

Conclusion: Listen to Your Body's Signals

Can you drink sparkling water while sick? The answer is nuanced. For some, it may offer a refreshing alternative. For others, particularly those with a sensitive stomach, GERD, or issues with bloating, it may cause more discomfort. If choosing sparkling water, opt for plain, unsweetened varieties and sip slowly to assess your body's reaction. When in doubt, plain water or soothing herbal tea is a safe option for hydration. For more information on dealing with a sore throat, see guidance from the Mayo Clinic.

Frequently Asked Questions

For some, the carbonation in sparkling water can help settle an upset stomach by encouraging burping. However, it can cause bloating and discomfort in others. Sip slowly to test your tolerance.

The refreshing nature of sparkling water may be soothing for some with a sore throat. However, the carbonation can also irritate inflamed throat tissue for others. Warm liquids like honey and lemon tea or broth are often more soothing.

Yes, sparkling mineral water is generally safe when sick and can provide additional minerals and electrolytes that can be lost during illness. However, it may still cause bloating or worsen acid reflux for some sensitive individuals.

Fizzy water is not inherently bad for a cold, and its hydrating properties are beneficial. The main concern is whether the carbonation bothers your digestive system or if you have a sore throat irritated by the bubbles. If it feels comfortable, it's a good choice for hydration.

Both sparkling and flat water are equally effective for rehydration. Your best choice is whichever one you are more likely to drink consistently. Some find the fizz more appealing, while others can drink larger quantities of flat water more easily.

No, plain sparkling water is a much better choice than carbonated soft drinks when you're sick. Soft drinks are often full of sugar, which can worsen diarrhea, and caffeine, which can cause dehydration and irritate your gut.

If you have acid reflux or GERD, it is generally best to avoid sparkling water when sick. The carbonation can increase stomach pressure and potentially worsen your reflux symptoms. Plain water, herbal tea, or broth are safer options.