How many calories are in 16 ounces of green tea? The definitive guide
                                
                                
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                                    6 min read                                
                            
                                Plain, unsweetened green tea contains virtually no calories, with an 8-ounce cup typically having less than 3 calories. This means a 16-ounce serving of pure green tea is also extremely low in calories, making it a healthy beverage choice. However, the caloric content can increase dramatically with the addition of sweeteners or other ingredients, so it is crucial to understand the preparation method.