Beverages, Energy drink, ROCKSTAR, sugar free
Whole food · Beverages
Photo: Wikipedia
ROCKSTAR Sugar Free is a zero-calorie, carbonated energy drink designed to deliver a potent caffeine kick without the sugar crash. It typically has a sharp, slightly medicinal, and intensely sweet artificial flavor profile, often in bold fruit or citrus varieties, with a fizzy, light texture. Its standout nutritional feature is its extremely low calorie count (4 kcal per 100g) and complete absence of sugar, making it a go-to for those monitoring caloric intake.
Calorie split: 22% protein · 62% carbs · 16% fat
↓ Full nutrition💚 Why it's loved
People love it for its immediate, potent stimulant effect and the ability to enjoy a sweet, fizzy drink without consuming sugar or significant calories. It's deeply embedded in gaming, extreme sports, and late-night work culture as a symbol of sustained focus and energy.
⚠️ Watch-outs & how to enjoy it better
The intense artificial sweeteners (like sucralose or acesulfame potassium) can cause digestive upset or a lingering metallic aftertaste for some. The high caffeine content (often 160mg per 16oz can) can lead to jitters, anxiety, or sleep disruption, especially in caffeine-sensitive individuals. To counteract, start with a half-can to assess tolerance, avoid consuming it late in the day, and never mix with alcohol.
Key benefits
- Provides a quick energy and alertness boost from caffeine.
- Contains zero sugar and minimal calories.
- Offers a convenient, portable caffeine source.
- Often includes B-vitamins and taurine for added metabolic support.
- Serves as a non-alcoholic mixer alternative.
🍽️ Popular dishes
🌍 Where it's eaten
💡 Did you know?
The original ROCKSTAR energy drink was launched in 2002 by a former Red Bull sales executive, and its name was inspired by the rock-and-roll lifestyle, not the astronomical phenomenon.
Full nutrition (USDA data · scales with serving)
| Water | 98.3 g |
| Energy | 4.0 kcal |
| Energy | 17.0 kj |
| Protein | 0.25 g |
| Total lipid (fat) | 0.08 g |
| Ash | 0.62 g |
| Carbohydrate, by difference | 0.70 g |
| Fiber, total dietary | 0.00 g |
| Total Sugars | 0.00 g |
| Calcium, Ca | 13.0 mg |
| Iron, Fe | 0.02 mg |
| Magnesium, Mg | 3.0 mg |
| Phosphorus, P | 0.00 mg |
| Potassium, K | 3.0 mg |
| Sodium, Na | 52.0 mg |
| Zinc, Zn | 0.00 mg |
| Copper, Cu | 0.01 mg |
| Selenium, Se | 0.20 ug |
| Vitamin C, total ascorbic acid | 0.00 mg |
| Thiamin | 0.03 mg |
| Riboflavin | 1.4 mg |
| Niacin | 8.3 mg |
| Pantothenic acid | 4.2 mg |
| Vitamin B-6 | 0.83 mg |
| Folate, total | 0.00 ug |
| Folic acid | 0.00 ug |
| Folate, food | 0.00 ug |
| Folate, DFE | 0.00 ug |
| Choline, total | 0.00 mg |
| Vitamin B-12 | 2.5 ug |
| Vitamin B-12, added | 2.5 ug |
| Vitamin A, RAE | 0.00 ug |
| Retinol | 0.00 ug |
| Carotene, beta | 0.00 ug |
| Carotene, alpha | 0.00 ug |
| Cryptoxanthin, beta | 0.00 ug |
| Vitamin A, IU | 0.00 iu |
| Lycopene | 0.00 ug |
| Lutein + zeaxanthin | 0.00 ug |
| Vitamin E (alpha-tocopherol) | 0.00 mg |
| Vitamin E, added | 0.00 mg |
| Vitamin D (D2 + D3), International Units | 0.00 iu |
| Vitamin D (D2 + D3) | 0.00 ug |
| Vitamin K (phylloquinone) | 0.00 ug |
| Alcohol, ethyl | 0.00 g |
| Caffeine | 33.0 mg |
| Theobromine | 0.00 mg |
Fat & fatty acid profile (per 100g)
| Fatty acids, total saturated | 0.00 g |
| SFA 4:0 | 0.00 g |
| SFA 6:0 | 0.00 g |
| SFA 8:0 | 0.00 g |
| SFA 10:0 | 0.00 g |
| SFA 12:0 | 0.00 g |
| SFA 14:0 | 0.00 g |
| SFA 16:0 | 0.00 g |
| SFA 18:0 | 0.00 g |
| Fatty acids, total monounsaturated | 0.00 g |
| MUFA 16:1 | 0.00 g |
| MUFA 18:1 | 0.00 g |
| MUFA 20:1 | 0.00 g |
| MUFA 22:1 | 0.00 g |
| Fatty acids, total polyunsaturated | 0.00 g |
| PUFA 18:2 | 0.00 g |
| PUFA 18:3 | 0.00 g |
| PUFA 18:4 | 0.00 g |
| PUFA 20:4 | 0.00 g |
| PUFA 20:5 n-3 (EPA) | 0.00 g |
| PUFA 22:5 n-3 (DPA) | 0.00 g |
| PUFA 22:6 n-3 (DHA) | 0.00 g |
| Fatty acids, total trans | 0.00 g |
| Cholesterol | 0.00 mg |
Amino acid profile (per 100g)
Estimated from Beverages, carbonated, tonic water — USDA does not publish this profile for Beverages.
| Tryptophan | 0.00 g |
| Threonine | 0.00 g |
| Isoleucine | 0.00 g |
| Leucine | 0.00 g |
| Lysine | 0.00 g |
| Methionine | 0.00 g |
| Cystine | 0.00 g |
| Phenylalanine | 0.00 g |
| Tyrosine | 0.00 g |
| Valine | 0.00 g |
| Arginine | 0.00 g |
| Histidine | 0.00 g |
| Alanine | 0.00 g |
| Aspartic acid | 0.00 g |
| Glutamic acid | 0.00 g |
| Glycine | 0.00 g |
| Proline | 0.00 g |
| Serine | 0.00 g |
FAQ
How much caffeine is in a sugar-free Rockstar?
A standard 16 fl oz (473ml) can of Rockstar Sugar Free typically contains 160mg of caffeine, which is roughly equivalent to 1.5 to 2 cups of coffee.
Is sugar-free Rockstar keto-friendly?
Yes, with 0g of sugar and negligible carbs (0.7g per 100g), it fits within the macronutrient guidelines of a ketogenic diet, though the artificial sweeteners are a point of debate in some keto communities.
Can I drink Rockstar every day?
While not inherently dangerous for healthy adults, daily consumption is not recommended due to the high caffeine content, which can lead to dependency, tolerance, and potential side effects like increased heart rate or insomnia. It's best used occasionally.
Nutrient density (calculated · NRF9.3)
Nutrient Rich Foods index: beneficial nutrients (protein, fiber, vitamins, minerals) minus saturated fat, added sugar & sodium, per 100 kcal.
NRF9.3 index — Fulgoni, Keast & Drewnowski, 2009. Computed from USDA nutrients.
Weight-loss friendliness (composite index)
Energy density 0.04 kcal/g · 25% calories from protein · 0.0 g fiber · 0.0 g sugar per 100 g.
Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.
Dietary load (calculated from USDA values)
Potential renal acid load. Positive = acid-forming, negative = alkaline-forming.
Sodium-to-potassium ratio: 17.33 (lower is better — aim for ≤ 1)
Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.