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Saccharin: past, present, and future.

S M Cohen

    Journal of the American Dietetic Association
    |July 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Saccharin, a non-caloric sweetener, was found to be carcinogenic only in rats over two generations, primarily affecting the lower urinary tract. Human studies show no increased bladder cancer risk from saccharin exposure.

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    Area of Science:

    • Food Science
    • Toxicology
    • Chemical Synthesis

    Background:

    • Saccharin, synthesized in 1879, is a widely used non-caloric sweetener valued for its sweetness, stability, and low cost.
    • Concerns regarding saccharin's toxicity and potential carcinogenicity have persisted, prompting extensive scientific investigation.
    • Previous studies have focused on evaluating the carcinogenic risk associated with chemical exposure.

    Purpose of the Study:

    • To investigate the potential carcinogenicity of saccharin, particularly its effects on the urinary tract.
    • To determine if saccharin promotes or enhances the carcinogenic process in animal models.
    • To evaluate epidemiological data for any correlation between human saccharin exposure and bladder cancer risk.

    Main Methods:

    • Administering sodium saccharin to rats over multiple generations to assess carcinogenicity.

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  • Conducting studies to evaluate saccharin's role as a carcinogen promoter in rat models.
  • Analyzing epidemiological data from human populations exposed to saccharin.

    • Main Results:

    • Saccharin induced tumors in rats, primarily in the lower urinary tract, with effects more pronounced in males and over two generations.
    • Sodium saccharin, but not acid saccharin, demonstrated carcinogenic effects in rats.
    • Saccharin was found to enhance or promote the carcinogenic process in rat models.
    • Epidemiological studies in humans did not reveal an increased risk of bladder cancer associated with saccharin consumption.

    Conclusions:

    • Saccharin's carcinogenic effects appear specific to rats and dependent on administration over multiple generations.
    • While saccharin shows carcinogenic potential in specific rat models, human epidemiological data do not support an increased risk of bladder cancer.
    • Further research may be warranted to elucidate the mechanisms behind saccharin's effects in rats and confirm the lack of risk in humans.