Celsius Energy Drink: A Clinically Proven Metabolism Booster
- spakry
- 3 days ago
- 4 min read
Celsius energy drink has been clinically shown to accelerate metabolism. Studies indicate that participants who consumed Celsius burned approximately 100 more calories over a three-hour period compared to those who drank a placebo. This significant calorie-burning effect contributed to Celsius generating $1.3 billion in revenue last year, reflecting its growing popularity among fitness enthusiasts and individuals seeking weight management solutions.

Scientific evidence supports the claim that Celsius can increase metabolism. A 28-day study at the University of Oklahoma demonstrated that Celsius has thermogenic properties that boost metabolism without adverse side effects on important health markers. Ingredients like caffeine (200mg per can, equivalent to two cups of coffee) and green tea extract enhance fat oxidation and energy expenditure, supporting the metabolism-boosting claims. This is particularly relevant considering 31% of Americans are classified as obese and 65% as overweight.
Understanding Metabolism
Metabolism refers to the sum of all chemical reactions occurring within the body to maintain life. These processes provide energy and support essential functions like breathing, circulating blood, and repairing cells. Metabolism consists of two main processes:
Catabolism: The breakdown of food components into simpler forms that provide energy.
Anabolism: The building up of compounds needed for growth and repair.
Your metabolism continuously sustains basic body functions and adapts to changing environments, including periods of eating, fasting, physical activity, and illness.
Several factors determine your metabolic rate:
Muscle Mass: Muscle tissue requires more energy to maintain than fat, making it a key driver of metabolism.
Body Size and Composition: Larger bodies with more tissue have higher metabolic rates.
Age: Metabolism typically decreases with age due to muscle loss and hormonal changes.
Sex: Men generally have faster metabolisms than women due to higher muscle mass.
Genetics: Your genes influence your metabolic rate.
Physical Activity: Regular exercise increases muscle mass and trains your body to burn calories faster.
Hormonal Factors: Thyroid hormones significantly impact metabolism.
Thermogenesis and Its Role
Thermogenesis is the production of heat in the body, an essential process for maintaining body temperature and expending energy. It represents one way metabolism burns calories beyond basic functions.
Celsius's Impact on Metabolism
Celsius contains a blend of ingredients specifically designed to boost metabolic rate. The formulation targets the body's natural thermogenic processes, potentially helping to burn more calories throughout the day.
Caffeine and Green Tea Extract
At the heart of Celsius's formula are two powerful metabolism boosters: caffeine and green tea extract. Each 12-ounce can contains approximately 200 mg of caffeine, equivalent to two cups of coffee. Caffeine stimulates metabolism by increasing the release of adrenaline, which signals fat cells to release fatty acids into the bloodstream for energy use. Additionally, caffeine inhibits phosphodiesterase, leading to an accumulation of cyclic AMP, which increases circulating epinephrine and free fatty acids.
Green tea extract contains epigallocatechin gallate (EGCG), which enhances caffeine's effects by slowing the breakdown of adrenaline, amplifying its impact. Research indicates that caffeinated green tea supplements can increase metabolism by approximately 4% and boost fat burning by 16% for 24 hours after ingestion.
MetaPlus® Blend
The proprietary MetaPlus® blend in Celsius is formulated to trigger thermogenesis—raising body temperature to burn additional calories. This blend includes:
Green Tea Extract: Contains EGCG that boosts metabolism and helps burn more calories.
Guarana Seed Extract: Contains over twice the amount of caffeine found in average coffee beans.
Ginger Root: Supports thermogenesis and positively affects digestive systems.
Chromium: Helps control hunger and enhances metabolism of proteins, carbohydrates, and lipids.
These ingredients work together to create a thermogenic effect, stimulating fat breakdown, suppressing hunger, and increasing calorie burning.
Clinical Evidence
Clinical studies have examined Celsius's impact on metabolism and energy expenditure. A double-blind, placebo-controlled trial found that drinking Celsius increased metabolic rate by approximately 12% over three hours compared to placebo. Another study reported that participants who consumed Celsius burned an average of 106 more calories during a 3-hour testing period than those drinking placebo.
Beyond metabolism, research shows Celsius consumption may improve body composition when combined with exercise. A 10-week University of Oklahoma study demonstrated that sedentary men drinking Celsius before moderate exercise experienced 78% greater fat loss and 79% greater endurance performance compared to exercise alone. Similarly, overweight women consuming Celsius before exercise showed 46% greater fat loss and 27% greater muscle mass increases than the exercise-only group.
Using Celsius Effectively
To maximize Celsius's metabolism-boosting potential, timing and proper usage are important. Drinking Celsius 15-20 minutes prior to exercise enhances the benefits of your workout. Many users find that Celsius works well as a morning beverage to jumpstart metabolism for the day or as a replacement for other caffeinated drinks.
Safety and Side Effects
While Celsius can boost metabolism, it's important to understand potential downsides. The high caffeine content may trigger unwanted reactions such as anxiety, increased heart rate, and insomnia. Some users report gastrointestinal distress, heart palpitations, or heightened blood pressure levels. In rare cases, studies have documented more serious outcomes like cardiac arrhythmias.
Celsius offers a scientifically-backed approach to boosting metabolism temporarily. Clinical evidence shows participants burn approximately 100 additional calories during a 3-hour period after consumption. The proprietary MetaPlus® blend, centered around caffeine and green tea extract, creates the thermogenic effect that sets Celsius apart from regular energy drinks.