If you are overweight, your BMI is something you should know. BMI stands for body mass index and it is used by the medical community to determine if you are underweight, at a healthy weight, overweight, or obese.
In simple terms, fat burners are supplements, pills or diet pill ingredients that are able to burn more fat than the body can do alone. Fat burners also able to reduce the rate at which the body produces fat. Fat burners typically contain herbal chemicals such as HCA (hydroxycitric acid), caffeine and ephedra, which are responsible for their fat burning capabilities.