What is club soda and what is it made of?
Club soda is carbonated water, sold as a mixer or plain drink. The USDA lists it at 0 calories, 0 g sugar and 21 mg sodium per 100 g. We found no official source that sets a required recipe for club soda, so the exact added minerals depend on the brand label.
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In this article
- What is in club soda?
- How many calories and how much sodium are in club soda?
- Is club soda the same as sparkling water or seltzer?
- Does club soda have sugar or alcohol?
- What is it used for?
- What’s in club soda? The ingredients and contents
- What minerals are in club soda?
- Is the potassium in club soda the same as quinine?
- Are there chemicals in club soda? Is it a chemical compound?
What is in club soda?
The base is water with carbon dioxide dissolved in it. The FDA treats “soda water” and “seltzer water” as food ingredients named on the ingredient label, not as bottled water under its bottled water standard.
Many brands also add mineral salts for taste. We found no official source that lists which salts a club soda must contain, so we do not name them here. The ingredient list on the bottle or can is the only reliable answer for one brand.
How many calories and how much sodium are in club soda?
The USDA entry “Beverages, carbonated, club soda” (FDC ID 174842) gives these values per 100 g:
| Nutrient | Per 100 g |
|---|---|
| Energy | 0 kcal |
| Total sugars | 0 g |
| Sodium | 21 mg |
Our calculation: a 12 fl oz can is about 355 g if we assume 1 g per mL, so about 75 mg of sodium. A brand with more added salts can differ, so check its Nutrition Facts panel.
Is club soda the same as sparkling water or seltzer?
Not always on the label. The FDA says “sparkling water” describes unsweetened, unflavored carbonated water. Water that keeps the natural carbon dioxide it had at its source is regulated as bottled water instead.
Does club soda have sugar or alcohol?
The USDA entry shows 0 g sugar. The name “soda” refers to the fizz, and nothing in the USDA entry points to alcohol. Flavored versions are different products, so read their labels.
What is it used for?
It is mostly used as a drink mixer or served on its own. We did not find an official source on uses, so we make no health claims for it.
What’s in club soda? The ingredients and contents
What’s in a club soda drink starts with carbonated water. FDA says ingredients must be listed in order of predominance by weight, and that for carbonated soft drinks the first ingredient usually will be carbonated water. FDA also says soda water, seltzer and tonic water have historically been regulated as soft drinks. We found no official page that sets a fixed ingredient list for club soda, so the label on your bottle or can is the answer for that brand, including flavour club soda ingredients.
What minerals are in club soda?
The contents of club soda that USDA measured are small amounts of minerals. The USDA entry “Beverages, carbonated, club soda” (FDC ID 174842) lists, per 100 g: 99.9 g water, 0 kcal, 0 g protein, 5 mg calcium, 2 mg potassium and 21 mg sodium. Our calculation: for a 12 fl oz can (about 355 g, assuming 1 g per mL), that is roughly 18 mg calcium, 7 mg potassium and 75 mg sodium.
Is the potassium in club soda the same as quinine?
No. Potassium is a mineral that USDA reports in club soda (2 mg per 100 g). Quinine is a different substance that people associate with tonic water. We found no official page we could open that says club soda contains quinine, so check the ingredient list. For comparison, the USDA tonic water entry (FDC ID 171869) lists 34 kcal and 8.8 g carbohydrate per 100 g, while club soda lists 0 kcal.
Are there chemicals in club soda? Is it a chemical compound?
Everything in it is a food ingredient. FDA says only food and color additives found safe may be used in carbonated soft drinks, and added ingredients must appear in the ingredient list. If you want to know exactly what a brand added, read that list; a plain club soda is mostly water, 99.9 g per 100 g in the USDA entry.
People also ask
Does club soda have calories or sugar?
The USDA lists 0 kcal and 0 g total sugars per 100 g for club soda.
How much sodium is in club soda?
USDA lists 21 mg per 100 g, about 75 mg for 355 g (our calculation). Brands differ, so check the label.
What are the ingredients in club soda?
Carbonated water first. The USDA entry for club soda shows 99.9 g water per 100 g, with small amounts of calcium, potassium and sodium. Brands may add other ingredients, so check the label.
What's in a club soda drink?
Mostly water. The USDA entry shows 99.9 g water per 100 g, 0 kcal, and small amounts of calcium, potassium and sodium. Check your brand's label for anything added.
Does club soda contain quinine?
We found no official source we could open that says it does. Quinine is linked to tonic water, which the USDA lists at 34 kcal per 100 g, unlike club soda at 0 kcal. Check the ingredient list of your brand.
Sources
- USDA FoodData Central: Beverages, carbonated, club soda (SR Legacy, FDC ID 174842), read 5 Nov 2026
- FDA / Federal Register: Standards of identity and quality for bottled water (final rule, 13 Nov 1995), read 5 Nov 2026
- FDA: Carbonated Soft Drinks: What You Should Know, read 5 Nov 2026
- FDA: FDA Regulates the Safety of Bottled Water Beverages Including Flavored Water and Nutrient-Added Water Beverages, read 5 Nov 2026
- USDA: FoodData Central, Beverages, carbonated, club soda (FDC 174842) and tonic water (FDC 171869), read 5 Nov 2026
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