Skip to content

What are the unhealthy ingredients in Mountain Dew?

4 min read

With a 12-ounce can containing an astonishing 46 grams of sugar, it’s no surprise that Mountain Dew’s ingredient list raises health concerns. Many consumers wonder: What are the unhealthy ingredients in Mountain Dew? A deep dive reveals a host of additives and chemicals that contribute to its detrimental health profile beyond just sugar.

Quick Summary

Mountain Dew's health risks are driven by high fructose corn syrup, artificial food dyes, and corrosive acids, all of which contribute to severe dental decay, metabolic issues, and weight gain with regular consumption.

Key Points

  • High Sugar Content: A single 12-ounce can contains 46 grams of sugar, primarily high fructose corn syrup, linked to obesity, diabetes, and fatty liver disease.

  • Artificial Food Dyes: The soda’s color comes from Yellow 5, which is associated with hyperactivity in some children and raises concerns as a potential carcinogen.

  • Dental Erosion: High levels of citric acid in Mountain Dew aggressively erode tooth enamel, increasing the risk of cavities and a condition known as “Mountain Dew Mouth”.

  • Harmful Preservative: Sodium benzoate can form benzene, a cancer-causing chemical, when it reacts with vitamin C under specific conditions.

  • High Caffeine: With 54 milligrams of caffeine per can, regular consumption can lead to dependence, sleep disruption, and anxiety.

  • No Nutritional Value: As an ultra-processed food, Mountain Dew provides only empty calories with no essential vitamins, minerals, or fiber.

  • Moderation is Key: Due to its harmful ingredients and lack of nutritional benefits, regular consumption of Mountain Dew should be avoided in favor of healthier alternatives.

In This Article

Mountain Dew has long been a popular citrus-flavored soda, but its ingredient list presents significant health concerns for regular consumers. This article breaks down the most problematic components, explaining how they can negatively impact your health.

High Fructose Corn Syrup and Excessive Sugar

One of the most concerning aspects of Mountain Dew is its exceptionally high sugar content, primarily from high fructose corn syrup (HFCS). A standard 12-ounce can contains 46 grams of sugar, significantly more than many other popular sodas. This excessive intake of added sugar is linked to a variety of serious health issues:

  • Weight Gain and Obesity: Liquid sugar, especially HFCS, is easily and quickly absorbed, contributing to weight gain and obesity when consumed regularly.
  • Type 2 Diabetes: The high sugar content can cause rapid spikes in blood sugar, increasing the risk of developing insulin resistance and type 2 diabetes over time.
  • Cardiovascular Disease: High sugar intake has been strongly associated with an increased risk of heart disease.
  • Nonalcoholic Fatty Liver Disease (NAFLD): The liver processes fructose, and excessive amounts can lead to the accumulation of fat in the liver.

The Problem with Artificial Food Dyes

Mountain Dew's signature neon-yellow color comes from the artificial food dye Yellow 5, also known as tartrazine. Artificial dyes have been a subject of controversy due to their potential health effects, particularly in children:

  • Hyperactivity in Children: Yellow 5 is one of several synthetic food dyes that have been linked to neurobehavioral effects, such as hyperactivity and behavioral problems, in some children.
  • Carcinogenic Concerns: Some artificial dyes, including Yellow 5, are petroleum-based and have been flagged as potential carcinogens, though regulations on their use vary by region.

Corrosive Acids and Dental Decay

Beyond its sugar content, Mountain Dew's acidity is a major contributor to poor dental health. The beverage contains a high concentration of citric acid, which gives it its tart flavor. The combination of sugar and high acidity creates a destructive environment for your teeth:

  • Enamel Erosion: The citric acid in Mountain Dew softens tooth enamel, the protective outer layer of the teeth. This process, known as erosion, makes teeth more vulnerable to decay and sensitivity.
  • "Mountain Dew Mouth": The term "Mountain Dew Mouth" has been coined by dental professionals to describe the severe tooth decay and dental erosion frequently observed in people who consume the soda excessively. The frequent exposure of teeth to sugar and acid significantly accelerates the decay process.

Preservatives and Other Additives

To maintain its freshness and flavor, Mountain Dew includes several preservatives and additives that have raised health questions:

  • Sodium Benzoate: Used as a preservative, sodium benzoate can form the potential cancer-causing chemical benzene when it interacts with vitamin C (which is present in the soda via concentrated orange juice) under certain conditions.
  • Brominated Vegetable Oil (BVO): Historically, Mountain Dew contained BVO as an emulsifier to prevent flavor separation. However, due to health concerns, the FDA banned its use in 2024, and major manufacturers have since removed it.

High Caffeine Content

Mountain Dew is also known for its significant caffeine content, with a 12-ounce can containing 54 milligrams. While not inherently unhealthy for all individuals, high caffeine intake comes with its own set of concerns:

  • Sleep Disruption: The stimulating effects of caffeine can disrupt sleep patterns, especially if consumed late in the day.
  • Dependency and Withdrawal: Regular high caffeine consumption can lead to dependence, with potential withdrawal symptoms like headaches and fatigue when intake is reduced.

Mountain Dew vs. Healthier Alternatives

When it comes to beverage choices, Mountain Dew stands in stark contrast to healthier options. Here’s a comparison to highlight the difference:

Feature Mountain Dew (12 oz can) Water (12 oz) Sparkling Water (12 oz)
Sugar 46 grams 0 grams 0 grams
Acidity pH of ~3.2 (very acidic) pH of ~7 (neutral) Slightly acidic, but much less damaging
Additives High Fructose Corn Syrup, Yellow 5, Sodium Benzoate, etc. None Can include natural flavors, but no sugar or problematic preservatives
Calories 170 0 0
Health Impact Contributes to obesity, diabetes, dental decay, and other issues Promotes hydration, essential for bodily functions Hydrates with some flavor, minimal dental impact

Summary of Health Implications

The combination of high sugar, artificial dyes, acids, and preservatives makes Mountain Dew a beverage with significant and multifaceted health risks. From dental erosion and obesity to metabolic disorders and potential behavioral issues, its ingredients offer no nutritional value while contributing to a range of chronic problems. Choosing healthier alternatives like water, unsweetened tea, or naturally flavored sparkling water is a more beneficial choice for your overall well-being. Focusing on a balanced diet and reducing sugary drink consumption is a key step towards better health.

Here’s a great resource on the health effects of sugary drinks: Healthline: 13 Ways That Sugary Soda Is Bad for Your Health

Frequently Asked Questions

High fructose corn syrup (HFCS) is unhealthy because it contributes to excessive calorie intake and is linked to weight gain, obesity, and an increased risk of metabolic conditions like type 2 diabetes and fatty liver disease.

'Mountain Dew Mouth' is a term used by dental professionals to describe the severe tooth decay and enamel erosion caused by frequent and excessive consumption of Mountain Dew, due to its high sugar content and acidity.

Yes, brominated vegetable oil (BVO) was historically used in Mountain Dew as an emulsifier. However, due to mounting health concerns, the ingredient was removed from the beverage after the FDA banned its use in 2024.

Sodium benzoate is a preservative that can react with the vitamin C in Mountain Dew to form benzene, a potential cancer-causing chemical. This risk is a significant health concern associated with the soda.

Diet Mountain Dew contains artificial sweeteners like aspartame and sucralose instead of sugar. Some studies suggest artificial sweeteners may negatively impact gut health and lead to metabolic dysfunction, while also perpetuating cravings for sweet flavors.

Healthier alternatives include plain water, flavored sparkling water with natural fruit, unsweetened iced tea, or kombucha. These options provide hydration and flavor without the excessive sugar, acid, and artificial additives.

Yes, some evidence suggests Mountain Dew is worse than many other popular sodas. It contains significantly more sugar and is more acidic than beverages like Coca-Cola, posing a greater risk for dental erosion and metabolic issues.

Yes, the extremely high sugar and calorie content of Mountain Dew contribute significantly to weight gain, especially with regular consumption. The liquid sugar does not promote feelings of fullness, making it easy to consume excessive calories.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9

Medical Disclaimer

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