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Red Bull Zero
Photo: Open Food Facts contributors (CC BY-SA)

Sodas

Red Bull Zero

250 mL (8.4 fl oz)

Good out of 100 High confidence
  • Ultra-processed
  • Contains non-nutritive sweeteners
  • Contains caffeine
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Why it scores 67

Red Bull Zero scores 67 out of 100 (Good) under GoodSwap’s published rules. What moved the score most:

  1. Ultra-processed (NOVA 4): Classified NOVA 4: made with industrial ingredients and additives. Strong
  2. Acesulfame potassium (Ace-K): In the NutriNet-Santé cohort, acesulfame-K intake was associated with higher cancer risk; cause and effect is not established. Strong
  3. Caffeine: The FDA cites 400 mg a day as generally safe for most adults; EFSA advises no more than 200 mg a day in pregnancy. 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

Red Bull Zero

START100

Ingredients

  • 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. [1][2][3][4]
  • 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. [5][6]
  • Xanthan gum
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [7]
subtotal−12.5

Processing

  • Ultra-processed (NOVA 4)
    Strong Classified NOVA 4: made with industrial ingredients and additives. [7]
  • 2 kinds of ultra-processing markers
    Emerging Industrial additive classes found: non-nutritive sweetener and thickener, stabilizer or gelling agent. [7]
subtotal−19.5

Nutrition per 100 ml

  • Energy 2 kcal / 100 ml
    Info Energy-dense for its volume. [4]
subtotal−1
TOTAL 67Good

100 − 33 = 67

GTIN 00611269623727 · 2026-08-09

score v1.3.0 · kb 2026.10.11

High confidence

Same product, same score. Every time.

Nutrition per 100 ml

Energy2 kcal
Fat0 g
Carbohydrates0.4 g
Sugars0 g
Added sugars0 g
Protein0 g
Salt0 g

Serving: 1 can (250 g)

Ingredients

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

Carbonated Water, Citric Acid, Taurine, Natural and Artificial Favors, Colors, Caffeine, Sodium Bicarbonate (Baking Soda), Magnesium Carbonate, Acesulfame K, Sucralose Xanthan Gum, Niacinamide, Pyridoxine HCI (Vitamin B6), Calcium Pantothenate, Vitamin B12

Allergens and diets

  • Palm-oil-free

Always check the package: recipes change.

Packaging

Aluminium

Context only: no points in v1.

Healthiest sodas in the US

More from Red Bull

Sources

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

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

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  8. 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

  9. 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

  10. 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