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Mountain Dew Baja Blast
Photo: Open Food Facts contributors (CC BY-SA)

Sodas

Mountain Dew Baja Blast

Poor out of 100 High confidence
  • Dye with an EU warning label
  • Contains synthetic dyes
  • Ultra-processed
  • Contains non-nutritive sweeteners
  • Contains caffeine
  • Contains artificial flavors
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Why it scores 28

Mountain Dew Baja Blast scores 28 out of 100 (Poor) under GoodSwap’s published rules. What moved the score most:

  1. Yellow 5: In the EU and UK, foods with this color must state that it "may have an adverse effect on activity and attention in children". Regulatory
  2. Ultra-processed (NOVA 4): Classified NOVA 4: made with industrial ingredients and additives. Strong
  3. Sodium benzoate: Benzoates can form small amounts of benzene in drinks that also contain ascorbic acid (vitamin C), especially with heat or light. Strong

Every line of the math is on The Receipt below, with its evidence tier and sources.

Better sodas

The same kind of product, at least 10 points higher, sold in the US. Never paid placements.

The Receipt

Mountain Dew Baja Blast

START100

Ingredients

  • Yellow 5
    Regulatory In the EU and UK, foods with this color must state that it "may have an adverse effect on activity and attention in children". [1][2][3][4][5][6]
  • Sodium benzoate
    Strong Benzoates can form small amounts of benzene in drinks that also contain ascorbic acid (vitamin C), especially with heat or light. [7][3][8]
  • Sucralose
    Strong In a 2022 randomized study, sucralose and saccharin altered the gut microbiome and impaired glucose responses in some people; a 2023 lab study raised questions about its by-product sucralose-6-acetate. [9][10][11][12][13]
  • Acesulfame potassium (Ace-K)
    Strong In the NutriNet-Santé cohort, acesulfame-K intake was associated with higher cancer risk; cause and effect is not established. [14][15][12][13]
  • Blue 1
    Regulatory The FDA is working with industry to remove six petroleum-based dyes from US food by the end of 2027; California bans them in school meals from December 31, 2027. [4][5]
  • Natural and artificial flavors
    Strong The label does not disclose which flavoring substances are used. [16][13]
  • Caffeine
    Strong The FDA cites 400 mg a day as generally safe for most adults; EFSA advises no more than 200 mg a day in pregnancy. [17][18]
  • Gum arabic (acacia)
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [19]
  • Calcium disodium EDTA
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [19]
  • Sucrose acetate isobutyrate (SAIB)
    Info An additive class typical of ultra-processed foods (NOVA group 4). [19]
subtotal−46.5

Processing

  • Ultra-processed (NOVA 4)
    Strong Classified NOVA 4: made with industrial ingredients and additives. [19]
  • 6 kinds of ultra-processing markers
    Emerging Industrial additive classes found: color (added), emulsifier, flavoring, non-nutritive sweetener, sequestrant and thickener, stabilizer or gelling agent. [19]
subtotal−25.5
TOTAL 28Poor

100 − 72 = 28

Can’t score above 79. Contains Yellow 5, an ingredient of high concern. [1][2][3][4][5][6]

GTIN 00012000183393 · 2026-02-10

score v1.3.0 · kb 2026.10.11

High confidence

Same product, same score. Every time.

Nutrition per 100 ml

Energy0 kcal
Fat0 g
Carbohydrates0 g
Sugars0 g
Added sugars0 g
Protein0 g
Salt0 g

Serving: 1 can (355 ml)

Ingredients

High Moderate Not recognized Tap an ingredient for its evidence and rules.
Label text, as published

CARBONATED WATER, CITRIC ACID, NATURAL AND ARTIFICIAL FLAVOR, SODIUM BENZOATE (PRESERVES FRESHNESS), POTASSIUM CITRATE, CAFFEINE, SUCRALOSE, ACESULFAME POTASSIUM, GUM ARABIC, CALCIUM DISODIUM EDTA (TO PROTECT FLAVOR), SUCROSE ACETATE ISOBUTYRATE, YELLOW 5, BLUE 1

Allergens and diets

  • Palm-oil-free

Always check the package: recipes change.

Healthiest sodas in the US

More from Mountain Dew

Sources

  1. Regulation (EC) No 1333/2008 of 16 December 2008 on food additives

    European Union (Official Journal) · Dec 16, 2008 · Law

    “may have an adverse effect on activity and attention in children.”

    eur-lex.europa.eu

  2. Regulation (EC) No 1333/2008 (as it applies in the UK), Annex V: food colours requiring additional labelling

    legislation.gov.uk (The National Archives) · Law

    “may have an adverse effect on activity and attention in children.”

    legislation.gov.uk

  3. Food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial

    The Lancet · November 2007 · Peer-reviewed

    “Artificial colours or a sodium benzoate preservative (or both) in the diet result in increased hyperactivity in 3-year-old and 8/9-year-old children in the general population.”

    doi.org

  4. Tracking Food Industry Pledges to Remove Petroleum Based Food Dyes

    U.S. Food and Drug Administration · Regulator

    “FD&C Green No. 3, FD&C Red No. 40, FD&C Yellow No. 5, FD&C Yellow No. 6, FD&C Blue No. 1, and FD&C Blue No. 2—by the end of 2027.”

    fda.gov

  5. California AB 2316 (2024), Pupil nutrition: substances: prohibition

    California Legislative Information · Sep 28, 2024 · Law

    “beginning December 31, 2027, would prohibit a school district, county superintendent of schools, or charter school”

    leginfo.legislature.ca.gov

  6. 21 CFR 74.705 FD&C Yellow No. 5

    Electronic Code of Federal Regulations (eCFR), U.S. Office of the Federal Register · Dec 29, 2016 · Law

    “shall specifically declare the presence of FD&C Yellow No. 5 by listing the color additive as FD&C Yellow No. 5 among the list of ingredients.”

    ecfr.gov

  7. Benzene production from decarboxylation of benzoic acid in the presence of ascorbic acid and a transition-metal catalyst

    Journal of Agricultural and Food Chemistry · May 1993 · Peer-reviewed

    doi.org

  8. Re-evaluation of benzyl alcohol (E 1519) as food additive (records the 2016 benzoate re-evaluation)

    European Food Safety Authority · Oct 30, 2019 · Agency assessment

    “derived a group ADI of 5 mg/kg bw per day (expressed as benzoic acid) in accordance with the ADI previously derived by SCF and JECFA”

    doi.org

  9. Personalized microbiome-driven effects of non-nutritive sweeteners on human glucose tolerance

    Cell · September 2022 · Peer-reviewed

    “As groups, each administered NNS distinctly altered stool and oral microbiome and plasma metabolome, whereas saccharin and sucralose significantly impaired glycemic responses.”

    doi.org

  10. Toxicological and pharmacokinetic properties of sucralose-6-acetate and its parent sucralose: in vitro screening assays

    Journal of Toxicology and Environmental Health, Part B · Aug 18, 2023 · Peer-reviewed

    “Sucralose-6-acetate significantly increased the expression of genes associated with inflammation, oxidative stress, and cancer”

    doi.org

  11. EFSA finds sucralose safe when used as currently authorised; cannot confirm safety of extending its use

    European Food Safety Authority · Feb 17, 2026 · Agency assessment

    “EFSA’s experts concluded that the sweetener sucralose (E 955) continues to be safe for consumers for its currently authorised uses as a food additive.”

    efsa.europa.eu

  12. WHO advises not to use non-sugar sweeteners for weight control in newly released guideline

    World Health Organization · May 15, 2023 · Agency assessment

    “The recommendation is based on the findings of a systematic review of the available evidence which suggests that use of NSS does not confer any long-term benefit in reducing body fat in adults or children.”

    who.int

  13. Dietary Guidelines for Americans, 2025–2030

    U.S. Department of Health and Human Services and U.S. Department of Agriculture · January 2026 · Regulator

    “Limit foods and beverages that include artificial flavors, petroleum-based dyes, artificial preservatives, and low-calorie non-nutritive sweeteners.”

    cdn.realfood.gov

  14. Artificial sweeteners and cancer risk: Results from the NutriNet-Santé population-based cohort study

    PLOS Medicine · Mar 24, 2022 · Peer-reviewed

    “In this large cohort study, artificial sweeteners (especially aspartame and acesulfame-K), which are used in many food and beverage brands worldwide, were associated with increased cancer risk.”

    doi.org

  15. Re-evaluation of acesulfame K (E 950) as food additive (plain language summary)

    European Food Safety Authority · Apr 30, 2025 · Agency assessment

    “The acceptable daily intake (ADI) considered safe for all population groups was set at 15 mg/kg body weight (bw) per day.”

    efsa.europa.eu

  16. 21 CFR 101.22 Foods; labeling of spices, flavorings, colorings and chemical preservatives

    Electronic Code of Federal Regulations (eCFR), U.S. Office of the Federal Register · Dec 19, 2016 · Law

    “whose significant function in food is flavoring rather than nutritional.”

    ecfr.gov

  17. Spilling the Beans: How Much Caffeine is Too Much?

    U.S. Food and Drug Administration · Regulator

    “For most adults, the FDA has cited 400 milligrams* a day — that's about two to three 12-fluid-ounce cups of coffee — as an amount not generally associated with negative effects.”

    fda.gov

  18. Caffeine (EFSA topic page; Scientific Opinion on the safety of caffeine, 2015)

    European Food Safety Authority · May 27, 2015 · Agency assessment

    “Caffeine intakes from all sources up to 200mg per day consumed throughout the day do not raise safety concerns for the foetus.”

    efsa.europa.eu

  19. Ultra-processed foods: what they are and how to identify them

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  20. HHS, FDA to Phase Out Petroleum-Based Synthetic Dyes in Nation’s Food Supply (press release)

    U.S. Food and Drug Administration · Apr 22, 2025 · Regulator

    “Initiating the process to revoke authorization for two synthetic food colorings—Citrus Red No. 2 and Orange B—within the coming months.”

    fda.gov

  21. Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses

    BMJ · Feb 28, 2024 · Peer-reviewed

    “Greater exposure to ultra-processed food was associated with a higher risk of adverse health outcomes, especially cardiometabolic, common mental disorder, and mortality outcomes.”

    doi.org

  22. Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial of Ad Libitum Food Intake

    Cell Metabolism · July 2019 · Peer-reviewed

    doi.org

  23. Regulation (EU) No 1169/2011, Annex III point 4.1 (beverages with high caffeine content)

    European Union (Official Journal) · Oct 25, 2011 · Law

    “‘High caffeine content. Not recommended for children or pregnant or breast-feeding women’”

    eur-lex.europa.eu