Dietary Supplement. Burns calories! Tastes great. Vitamin enriched. Burn up to 100 calories or more in each can. Tastes great, burn calories and backed by science. It really works! Multiple studies show one delicious refreshing Celsius on average burns up to 100 calories or more per can by raising metabolism over a 3-hour period, generating increased energy (100 calories represents the average calories burned over three hours in healthy college-aged men and women consuming one 12 ounce Celsius. Celsius alone does not produce weight loss in the absence of a healthy diet and regular exercise). Celsius combines the healthy benefits of green tea, vitamins and more to boost your metabolism. Enjoy the great taste of burning calories with Celsius the original calorie burner. Celsius is most effective when combined with a healthy diet and regular exercise program. Celsius may enhance the benefits of regular exercise, such as cardio fitness, endurance and body composition (These results represent the findings of a 10-week study conducted with healthy college-aged men and women consuming one 12 ounce Celsius each day and prior to exercise. Celsius alone does not produce weight loss in the absence of a healthy diet and regular exercise). A Healthier Choice: No sugar; No carbs; No aspartame; No preservatives; Very low sodium; No high fructose corn syrup; No artificial colors or flavors. Powered by the calorie burning benefits of MetaPlus, a proprietary blend of scientifically tested ingredients shown to enhance metabolism, resulting in a sustained calorie burn. Contains: 200 mg total caffeine per serving.