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How unhealthy is sour candy? The risks of sugar and acid

4 min read

A study published in the British Dental Journal found some sour candies have pH levels lower than orange juice, putting them at higher risk for causing dental erosion. Understanding how unhealthy is sour candy involves looking beyond just sugar, into the very acids that make it so appealing.

Quick Summary

Sour candy combines high acidity with high sugar content, creating a potent mix that erodes tooth enamel and irritates oral soft tissues. Frequent consumption can lead to dental issues and other health concerns.

Key Points

  • High Acidity and Erosion: Sour candy contains potent acids like citric and malic acid, which lower the mouth's pH and can strip away tooth enamel.

  • Double the Damage: The combination of high acidity and high sugar content creates a dual threat for cavities and irreversible dental erosion.

  • Irritates Soft Tissues: Excessive consumption of sour candy can lead to painful tongue burns, blisters, and peeling of the skin inside the mouth.

  • Practice Mitigation: To reduce harm, chew and swallow quickly, rinse with water afterward, and wait at least 30 minutes before brushing your teeth.

  • Consider Alternatives: For a similar tangy flavor, try healthier options like frozen grapes with a sprinkle of citric acid or fresh citrus fruits.

  • Moderation is Key: Enjoying sour candy as an occasional treat rather than a regular snack is crucial to minimizing its harmful effects.

In This Article

Sour candy's signature pucker-inducing flavor comes from a potent combination of acids and sugar, posing a double threat to dental and overall health. The very traits that make it a favorite for many are also what contribute to its unhealthy nature. This article delves into the specific risks associated with sour candy and provides strategies for enjoying these treats safely.

The Double Threat: Acid and Sugar

Most candies are primarily unhealthy due to their high sugar content, which oral bacteria feed on to produce cavity-causing acids. Sour candy adds another layer of danger with its own high levels of acids, which can directly and chemically weaken tooth enamel. A study in the British Dental Journal revealed that some sour candies have a pH as low as 1.8, close to stomach acid, far below the critical pH of 5.5 where tooth enamel begins to demineralize.

Common Acids in Sour Candy

The sour taste is created by several food-grade organic acids, often applied as a powdered coating.

  • Citric Acid: A primary acid found in lemons and oranges, it provides a sharp, tart flavor.
  • Malic Acid: Found in apples and cherries, malic acid is often used for extreme sourness.
  • Fumaric Acid: A food additive that provides a lasting sour taste.
  • Tartaric Acid: Found naturally in grapes, it adds a distinct sharp, tart quality.

Oral Health: A Detailed Breakdown

The Risk of Dental Erosion

Dental erosion is the irreversible loss of tooth enamel caused by direct acid attacks. The low pH of sour candy softens the enamel, and prolonged exposure, especially from sucking on hard candies, accelerates this process. This leads to several noticeable issues:

  • Increased Sensitivity: As enamel thins, the sensitive dentin layer beneath becomes more exposed, causing pain or discomfort with hot, cold, or sweet foods.
  • Translucent Appearance: The biting edges of front teeth may appear translucent due to enamel loss.
  • Cupping and Pitting: Chewing surfaces can develop dents or small pits, a classic sign of acid erosion.

Irritation of Soft Tissues

The high acidity can also cause direct irritation and damage to the soft tissues of the mouth, including the tongue, gums, and cheeks. In extreme cases, a low-pH candy can cause burns, blisters, and peeling of the tongue's top layer of skin. While the soft tissue usually heals quickly, repeated exposure can be quite painful.

Beyond the Mouth: Systemic Effects

Sour candy's high sugar content contributes to a range of wider health problems, regardless of dental impact. Excessive sugar consumption is linked to weight gain, increased risk of type 2 diabetes, and other metabolic issues. The quick blood sugar spike followed by a crash can affect energy levels and mood. Artificial colors and flavors found in many varieties also raise health concerns for some individuals.

Sour Candy vs. Other Candy: A Comparison

Feature Sour Candy Chocolate Candy Healthy Alternative
Acidity High (pH below 5.5) Low (less acidic) Fruits (contain natural acids, but also fiber and vitamins)
Dental Erosion High risk due to acid and sugar Lower risk; less acidic and less sticky Very low risk; natural sugars and stimulation of saliva offer some protection
Sugar Content Very high, contributes to cavities High, but often less concentrated per bite Natural, with added fiber that slows absorption
Oral Adherence Often sticky, prolonging exposure Melts and clears quickly No adherence issues
Soft Tissue Damage High risk of burns and peeling Very low risk None

Moderation and Mitigation: Eating Sour Candy Safely

While completely avoiding sour candy is the safest option, enjoying it in moderation with proper precautions can minimize harm. The best strategy is to limit consumption and follow these tips:

  • Don’t suck for long periods: Prolonged contact increases enamel erosion. Chew quickly and swallow.
  • Drink water during and after: Swishing with water can help neutralize acids and wash away sugar.
  • Wait to brush your teeth: Wait at least 30 to 60 minutes after eating acidic foods. Brushing immediately can cause more harm by abrading the softened enamel.
  • Chew sugar-free gum: This increases saliva flow, which helps remineralize teeth and neutralize acid.
  • Consume with a meal: Eating sour candy with a meal exposes teeth to less concentrated acid for less time, as the meal's components can help buffer the acid.
  • Consider healthier alternatives: Try naturally sour fruits like frozen grapes or dried fruit with a sprinkle of citric acid for a similar pucker.

Conclusion

Sour candy is undeniably unhealthy, primarily due to its potent combination of sugar and high acidity, which attacks tooth enamel and irritates oral tissues. While the occasional indulgence might not cause significant damage, frequent consumption can lead to irreversible dental erosion, heightened sensitivity, and systemic issues associated with high sugar intake. By understanding these risks and practicing moderation alongside proper dental hygiene, it's possible to minimize the harmful effects. For those seeking the sour sensation without the consequences, exploring healthier alternatives is a smart choice. Remember, the power of sour is best enjoyed sparingly.

Sour sweets: a new type of erosive challenge?

Frequently Asked Questions

Sour candy is more harmful because it contains high levels of acids in addition to sugar. While regular candy's sugar causes acid production, sour candy introduces direct acid attacks that weaken and erode tooth enamel more aggressively.

Yes, the high concentration of acid in sour candy can damage the top layer of skin on your tongue, causing it to become raw, sensitive, and in severe cases, peel or bleed.

After eating sour candy, rinse your mouth with water or milk to help neutralize the acids. Wait at least 30 to 60 minutes before brushing your teeth, as brushing immediately can further harm softened enamel.

Many sour candies have a pH level between 1.6 and 4.0, which is significantly lower (more acidic) than the normal oral pH of around 7.0. Tooth enamel begins to erode at a pH of 5.5 or lower.

Yes, healthier alternatives include frozen grapes tossed in citric acid, fresh citrus fruits, or sugar-free gum containing xylitol, which helps neutralize acid.

Yes, chewing sugar-free gum stimulates saliva production. Saliva naturally helps to neutralize acids and remineralize tooth enamel, offering a protective effect after consuming sour candy.

Long-term effects of consuming too much sour candy include irreversible dental erosion, heightened tooth sensitivity, an increased risk of cavities, and potential health problems related to high sugar intake.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.