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Brand founded in Austria, 1984 · about the brand
Red Bull Sugarfree
Decode Label Safety Score
How we got 3.9 ShowHide
Methodology v3.1 (updated 8 Oct 2026) — what changed
The score is capped for a specific safety reason, set out below. This energy drink contains artificial sweeteners, sucralose and acesulfame potassium, whose long-term effects are still under research. While caffeine is present, its concentration is low (0.03%), making it less of a concern for typical adult consumption compared to other energy drinks. The product also includes an undisclosed 'Flavours' ingredient, which limits transparency for consumers with sensitivities.
At a glance
From the declared label — not a lab testFindings to weigh
What’s favorable
- Niacin
- Vitamin B6
- Vitamin B2
- Vitamin B12
Artificially sweetened energy drink with undisclosed flavours and low caffeine
The score is capped for a specific safety reason, set out below. This energy drink uses artificial sweeteners, sucralose and acesulfame potassium, which are still being studied for their long-term health impacts. The specific 'Flavours' used are not disclosed, which can be a concern for those with allergies or sensitivities. While it contains caffeine, the amount is relatively low compared to many other energy drinks.
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- Allergies. Peanut, milk, gluten, egg and more, checked against the ingredient list.
- Diet. Vegetarian, vegan, Jain, no egg, no dairy.
- Health and goals. Sugar, salt, protein, steady blood sugar, heart-friendly, weight.
- Everyone you buy for. Save a profile for Papa or the kids and switch in one tap.
Concern breakdown
Score out of 10 · higher = fewer concernsHow this product performs on each concern we check for beverage. This is a breakdown of the same evidence behind the score above — not a separate verdict.
Other audiences
LimitContains caffeine, a stimulant. Caffeine intake should be limited for children and adolescents, with a recommended maximum of 3 mg per kg of body weight per day.
Contains caffeine. The recommended limit for caffeine intake during pregnancy is 200 mg per day.
Specific sensitivities
Avoid if affectedContains Sucralose and Acesulfame K, which may cause digestive discomfort or other reactions in sensitive individuals.
Why the score is capped
Highly processed (NOVA); contains artificial sweeteners
Rule F-CAP-09
Flavours not disclosed — the label does not say which substance this is
Rule F-CAP-13
High caffeine / added-stimulant load for an energy-type drink
Rule F-CAP-11
What's good
Contains B vitamins (Niacin, B6, B2, B12) which support energy metabolism.
Watch out for
Contains artificial sweeteners (Sucralose, Acesulfame K) with unsettled long-term health effects.
Flavours are not specifically disclosed, limiting transparency.
Contains Caramel Colour, which may contain 4-MEI, a possible carcinogen (IARC Group 2B).
Ingredient Concerns safety database
Sources cited below may be Indian (FSSAI) or international (EU, US, WHO, IARC) — an international classification or law is evidence, not an Indian regulatory finding.
Sucralose (E955)
Sucralose is an approved intense sweetener with an established acceptable daily intake. The WHO (2023) advises against relying on non-sugar sweeteners for weight control, and research into long-term gut and metabolic effects is ongoing. Heating it at very high temperatures is not recommended.
Regulatory & scientific authority Source: WHO guideline on non-sugar sweeteners (2023); EFSA/JECFA acceptable daily intake
Sucralose: regulation, sources and other products →Acesulfame Potassium (E950)
Acesulfame K is an approved intense sweetener. Regulators set an acceptable daily intake and consider it safe within it, but the WHO (2023) advises against using non-sugar sweeteners to control body weight because there is no long-term benefit and possible long-term harms, and long-term research on gut and metabolic effects is still developing.
Regulatory & scientific authority Source: WHO guideline on non-sugar sweeteners (2023); EFSA/JECFA acceptable daily intake
Acesulfame Potassium: regulation, sources and other products →Caffeine
The EU food safety authority found that up to 400 mg of caffeine a day (about 3 mg per kg of body weight a day in children and adolescents) does not raise safety concerns, and that pregnant and breastfeeding women should stay at or below 200 mg a day. Caffeine added to a drink or supplement counts toward that total alongside coffee and tea. Energy drinks and fat-burner stacks are judged by their own caps; this record explains the substance.
Regulatory & scientific authority Source: EFSA Scientific Opinion on the safety of caffeine, EFSA Journal 2015;13(5):4102
Caffeine: regulation, sources and other products →Decode Label Analysis
Sucralose is an intense artificial sweetener whose long-term effects of regular use are not settled.
Acesulfame Potassium is an intense artificial sweetener whose long-term effects of regular use are not settled.
Caffeine is a stimulant. The adult limit is about 400 mg/day, 200 mg in pregnancy, and 3 mg per kg for children.
Caramel Colour (unspecified type) may contain 4-methylimidazole (4-MEI), classified by IARC as Group 2B, 'possibly carcinogenic to humans' (ingested route).
Claim check
Front-of-pack marketing claims checked against this product's actual ingredients and nutrition. "Can't verify" means the label does not provide enough information to check the claim — it is not the same as the claim being false.
The claim 'Vitalizes body and mind' is a subjective benefit statement that cannot be verified from the provided ingredient list or nutrition information.
The nutrition information states 0g of sugar per 100g, and the ingredients list sweeteners (Sucralose, Acesulfame K) instead of sugar.
The ingredients list Caffeine (0.03%) and the nutrition information states Caffeine 30 mg per 100g.
The nutrition information states 0g of sugar per 100g, confirming it is sugar-free.
The ingredients list Taurine (0.4%) and the nutrition information states Taurine 400 mg per 100g.
Read straight from the back-of-pack photo — quantities, sections and any disguised terms, so the small print can’t hide behind the marketing.
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1.
Water
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2.
Citric AcidAcidulant (Citric Acid)
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3.
Carbon Dioxide
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4.
Taurine 0.4% trace amountTaurine (0.4%)
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5.
Sodium BicarbonateAcidity Regulators (Sodium Bicarbonate
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6.
Magnesium CarbonateMagnesium Carbonate)
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7.
FlavoursFlavours (natural and artificial)
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8.
Caramel Colour synthetic colourColour (Caramel)
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9.
Caffeine 0.03% trace amountCaffeine (0.03%)
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10.
SucraloseSweeteners (Sucralose
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11.
Acesulfame KAcesulfame K)
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12.
Xanthan GumThickener (Xanthan Gum)
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13.
NiacinVitamins (Niacin
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14.
Vitamin B6B6
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15.
Vitamin B2B2
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16.
Vitamin B12B12)
Trace amounts: some named ingredients appear in token quantities or low in the list. At these concentrations a meaningful benefit is unlikely, and their front-of-pack prominence may not reflect their level in the formulation.
In label order — normally largest quantity first. Select a row for the full write-up and sources.
✓ Decode Label Assessment: Favorable ⚠ Decode Label Assessment: Concern Decode Label Assessment: Neutral
Who should take caution
About this ingredient
Declared on this label as
No detailed safety data in our database yet for this ingredient.
Learn More
| Energy | 3 kcal |
| Protein | 0 g |
| Carbohydrate | 0 g |
| Total Sugars | 0 g |
| Total Fat | 0 g |
| Saturated Fat | 0 g |
| Taurine | 400 mg |
| Caffeine | 30 mg |
| Niacin | 2.4 mg |
| Vitamin B6 | 0.4 mg |
| Vitamin B2 | 0.2 mg |
| Vitamin B12 | 0.2 µg |
Colour shows the per-100g level (green = low, amber = moderate, red = high), from the product's label.
Compare with other energy drink products
Assessed using the same Decode Label methodology, sorted by score. Each score reflects the information available for that product at the time of assessment.
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What are the ingredients in Red Bull Sugarfree?
The label of Red Bull Sugarfree lists 16 ingredients, in label order: Water, Citric Acid, Carbon Dioxide, Taurine, Sodium Bicarbonate, Magnesium Carbonate, Flavours, Caramel Colour, Caffeine, Sucralose, Acesulfame K, Xanthan Gum, Niacin, Vitamin B6, Vitamin B2, Vitamin B12. Flagged by the analysis: Sucralose, Acesulfame K, Caramel Colour, Caffeine.
Is Red Bull Sugarfree safe to eat?
Red Bull Sugarfree scores 3.9/10 on Decode Label (Concerning). The score is capped for a specific safety reason, set out below. This energy drink uses artificial sweeteners, sucralose and acesulfame potassium, which are still being studied for their long-term health impacts. The specific 'Flavours' used are not disclosed, which can be a concern for those with allergies or sensitivities. While it contains caffeine, the amount is relatively low compared to many other energy drinks.
Why does Red Bull Sugarfree score 3.9/10?
Flagged in the score: Contains artificial sweeteners (Sucralose, Acesulfame K) with unsettled long-term health effects. Contains Caramel Colour, which may contain 4-MEI, a possible carcinogen (IARC Group 2B). Also noted: Flavours are not specifically disclosed, limiting transparency.
Who should avoid Red Bull Sugarfree?
The points the analysis notes are most relevant to: Avoiding artificial sweeteners (Sucralose, Acesulfame K); Sensitive to caffeine; Seeking full flavour transparency.
How much sugar is in Red Bull Sugarfree?
0 g of total sugar per 100 ml. The label does not declare added sugar separately, so we cannot say how much of it is added.
Does Red Bull Sugarfree contain caffeine?
Yes — the ingredient list names Caffeine, a source of caffeine. Check the pack for the amount per serving, especially when buying for children or during pregnancy.
Are the claims on the Red Bull Sugarfree pack accurate?
Decode Label checked 5 claims against the ingredient list and nutrition panel. "Vitalizes body and mind" — can't be verified from the label.
Is Red Bull Sugarfree vegetarian?
Red Bull Sugarfree is marked vegetarian, and contains no animal-derived ingredients.
Answers are generated from this product's own Decode Label analysis — the score, the ingredient list and the label claims shown above. Always check the pack itself for allergen and dietary information.
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About this analysis: Based on declared label information and available evidence. Decode Label does not independently laboratory-test products, and a score is not a regulatory determination or medical advice.
Disclaimer: Safety scores are Decode Label-generated assessments based on publicly available regulatory data (FSSAI, WHO, EFSA, IARC) and peer-reviewed research. They are not a substitute for professional medical advice, and they are not a regulatory determination, a laboratory safety certification or a medical diagnosis. Ingredient safety can vary by individual health conditions, concentration, and usage context. Decode Label is an independent information service and scores every brand by the same rules. No brand pays for or influences its score. Our founder also founded the personal-care brand Botani Bestie (see our story); its products are scored exactly like everyone else's. Data limitations: This assessment is based on the information declared on the product label and the evidence sources above — Decode Label does not independently laboratory-test this product. Ingredient concentrations, sourcing and manufacturing can vary between batches and are not always disclosed. A finding that is not shown here means it was not identified from the available label information, not that it has been ruled out.
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