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Monster Mega Monster Energy
Photo: Open Food Facts contributors (CC BY-SA)

Sodas

Monster Mega Monster Energy

24 oz

Bad out of 100 Medium confidence
  • High in sugar
  • Contains non-nutritive sweeteners
  • Contains added sugars
  • Contains caffeine
  • No synthetic dyes
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Why it scores 10

Monster Mega Monster Energy scores 10 out of 100 (Bad) under GoodSwap’s published rules. What moved the score most:

  1. Sugar: An added sugar. Strong
  2. Corn syrup: An added sugar. Strong
  3. Ultra-processed (NOVA 4, estimated): No NOVA group on file; estimated from 4 kinds of ultra-processing markers. Strong

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

Better energy drinks

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

The Receipt

Mega Monster Energy

START100

Ingredients

  • Sugar
    Strong An added sugar. [1][2][3]
  • Corn syrup
    Strong An added sugar. [1][2][3]
  • Benzoic acid
    Strong Benzoates can form small amounts of benzene in drinks that also contain ascorbic acid (vitamin C), especially with heat or light. [4]
  • 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. [5][6][7][8][2]
subtotal−50

Processing

  • Ultra-processed (NOVA 4, estimated)
    Strong No NOVA group on file; estimated from 4 kinds of ultra-processing markers. [9]
  • 4 kinds of ultra-processing markers
    Emerging Industrial additive classes found: color (added), flavoring, industrial sugar or starch hydrolysate and non-nutritive sweetener. [9]
subtotal−22.5

Nutrition per 100 ml

  • Sugars 11.3 g / 100 ml
    Strong Very high in sugar. [1]
  • Energy 46 kcal / 100 ml
    Info Energy-dense for its volume. [2]
subtotal−18
TOTAL 10Bad

100 − 90.5 = 9.5 → 10

Can’t score above 79. Contains sugar, an ingredient of high concern. [1][2][3]

Can’t score above 79. High in sugars (above the front-of-pack "high" level). [10]

GTIN 00070847811244 · 2025-11-04

score v1.3.0 · kb 2026.10.11

Medium confidence

Same product, same score. Every time.

Nutrition per 100 ml

Energy46 kcal
Fat0 g
Carbohydrates11.3 g
Sugars11.3 g
Added sugars11.4 g
Protein0 g
Salt0.2 g

Serving: 1 can (710 ml)

Ingredients

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

CARBONATED WATER, SUGAR, GLUCOSE, CITRIC ACID, NATURAL FLAVORS, TAURINE, SODIUM CITRATE, COLOR ADDED, PANAX GINSENG EXTRACT, L-CARNITINE L-TARTRATE, CAFFEINE, SORBIC ACID (PRESERVATIVE), BENZOIC ACID (PRESERVATIVE), NIACINAMIDE (VIT. B3), SUCRALOSE, SALT, D-GLUCURONOLACTONE, INOSITOL, GUARANA EXTRACT, PYRIDOXINE HYDROCHLORIDE (VIT. B6), RIBOFLAVIN (VIT. B2), MALTODEXTRIN, CYANOCOBALAMIN (VIT. B12).

Allergens and diets

  • Vegan
  • Vegetarian
  • Palm-oil-free

Always check the package: recipes change.

Healthiest sodas in the US

More from Monster

Sources

  1. Guideline: sugars intake for adults and children

    World Health Organization · Mar 4, 2015 · Agency assessment

    “In both adults and children, WHO recommends reducing the intake of free sugars to less than 10% of total energy intake”

    who.int

  2. 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

  3. Added and free sugars should be as low as possible

    European Food Safety Authority · Feb 28, 2022 · Agency assessment

    “Sugar consumption is a known cause of dental caries.”

    efsa.europa.eu

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

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

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  10. Guide to creating a front of pack (FoP) nutrition label for pre-packed products sold through retail outlets

    Department of Health and Social Care / Food Standards Agency (GOV.UK) · Nov 8, 2016 · Regulator

    “Table 3: Criteria for drinks (per 100ml)”

    assets.publishing.service.gov.uk

  11. 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

  12. 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