Calcium Cyclamate (INS 952(ii)): A Comprehensive Guide to the Low-Calorie Sweetener
Answer Snapshot
- What it is: The calcium salt of cyclamic acid, used as a non-nutritive sweetener in reduced-sugar products.
- Safety consensus: JECFA and EFSA support an ADI of 0-11 mg/kg body weight/day; approval varies by country.
- Common uses: Diet beverages, tabletop sweeteners, dairy products, confections, and some oral care products.
- Blood sugar impact: It is not metabolized for energy and does not raise blood glucose or insulin.
- Who should be careful: Consumers mainly need to watch local regulatory status because market approval differs across regions.
- Label names / aliases: Calcium cyclamate, cyclamate, INS 952(ii).
Quick Facts
| Attribute | Detail |
|---|---|
| Ingredient name | Calcium cyclamate |
| INS code | 952(ii) |
| Functional class | Non-nutritive sweetener |
| Sweetness potency | About 30 times sweeter than sucrose |
| Caloric value | Negligible in practice |
| ADI | 0-11 mg/kg body weight/day |
| Stability | Typically stable through pH 3.0-8.0 and heating to about 180°C |
| Blood sugar impact | No meaningful glycemic effect |
| Typical label names | Calcium cyclamate, cyclamate, INS 952(ii) |
What It Is
Calcium cyclamate is the calcium salt form of cyclamic acid, part of the cyclamate family of sweeteners first identified in 1937. In practice, salts such as calcium cyclamate are used because they are more soluble and easier to formulate than the free acid.
Its sensory role is less about extreme potency and more about dependable sweetness with good formulation value. It is often paired with saccharin because that blend gives a more sugar-like profile than either ingredient alone.
Safety
JECFA and EFSA have evaluated cyclamates and support an ADI of 0-11 mg/kg body weight/day. The toxicology reviews cited in regulatory literature do not support carcinogenic, genotoxic, or reproductive risk at approved intake levels.
The main practical caveat is regulatory geography. Calcium cyclamate is approved in many markets, including parts of Europe and other international jurisdictions, but U.S. approval has historically differed. For consumers and manufacturers, that makes local labeling and market rules especially important.
Metabolism and Blood Sugar
Calcium cyclamate is not significantly metabolized for energy in humans. It passes through the digestive system largely unchanged and is excreted in urine, which is why it contributes essentially no usable calories.
Because it does not behave like a digestible carbohydrate, it does not meaningfully raise blood glucose or insulin. That makes it relevant for reduced-sugar products aimed at diabetes-friendly or low-carbohydrate positioning.
Stability
One of calcium cyclamate's formulation strengths is process stability. It remains stable across a broad pH range of about 3.0 to 8.0 and can tolerate heating up to roughly 180°C in typical food systems.
That combination makes it more versatile than heat-sensitive options such as aspartame. It can be used in acidic beverages, dairy systems, and selected baked products without major sweetness loss during standard processing.
Common Uses
Calcium cyclamate appears in diet soft drinks, reduced-sugar fruit drinks, tabletop sweeteners, dairy products, confectionery, and some pharmaceutical or oral care applications where bitterness masking matters.
Its appeal comes from a mix of clean sweetness, good cost efficiency, and the ability to work well in blends, especially with saccharin.
Compare and Alternatives
Compared with saccharin, calcium cyclamate generally has a milder profile with less metallic aftertaste, although saccharin is much sweeter. Compared with aspartame, it offers better heat stability. Compared with sucralose or steviol glycosides, it is less potent but can be more cost-efficient in some mass-market formulations.
Its strongest use case is not usually as a premium standalone sweetener, but as a stable workhorse ingredient in blends that aim to mimic sugar more closely.
Official References
- FAO/WHO Codex Alimentarius Global Standard for Food Additives (GSFA): https://www.fao.org/gsfaonline/en/ (search for "INS 952(ii)" or "Calcium cyclamate" to view approved uses and specifications)
- JECFA Evaluation of Cyclamates: https://www.fao.org/jecfa-monographs/additives/cyclamates/en/ (Note: Server temporarily unavailable; check back later for full evaluation details)
- EFSA Scientific Opinion on Cyclamates: https://www.efsa.europa.eu/en/topics/topic/cyclamates (Note: Server temporarily unavailable; check back later for the latest safety assessment)
The information provided in this article is for educational and informational purposes only and is not intended as medical advice. Food additive regulations vary by country, so always check local guidance and product labels.