The effectiveness of fat burning supplements is still in question. Although they're commonly used for weight loss, there's not much evidence that they work. These supplements claim to block the absorption of fats or carbohydrates, reduce appetite, or speed up metabolism. But the good news is that thermogenic fat burners are generally safe.
They are effective in helping to burn fat and prevent fat from accumulating in the first place. When combined with a healthy diet and exercise program, thermogenic fat burners will help you reduce fat as you build muscle and get in shape. Therefore, in general, the use of thermogenics may not be the way to go and is certainly not the only means of losing weight. However, in combination with exercise and a sensible diet, as well as their appetite-suppressing effects, there may be an argument for including them in your weight loss journey.
Thermogenic fat burners are a great option for anyone who wants to lose a little more weight, whether you're an active athlete or you're sitting at a desk all day. It seems more effective in mitigating weight gain than in promoting fat loss, which can make it useful before workouts or for bulking to help add muscle instead of fat. Some thermogenic fat burners contain glucomannan from konjac root or other ingredients that can make you feel full and suppress your appetite. Some studies suggest that carnitine loses its effectiveness over time, so if you use a fat burner that contains carnitine and are serious about muscle preservation, you may consider quitting the product from time to time.
People who are sensitive to caffeine would do well to look for fat burners that don't contain any stimulants. A study published in the American Journal of Clinical Nutrition found that men who ingested the active ingredient in green tea (catechins) significantly reduced the total fat area, waist circumference, thickness of skin folds and the area of subcutaneous fat. This can be more water than anything else, especially if the fat burner contains a diuretic of any type. Thermogenic fat burners typically contain a combination of ingredients that will help at both ends of this equation.
In addition to the chemical components that specifically burn calories and fats, many thermogenic fat burners also contain natural ingredients that prevent the absorption of fats in the body. These thermogenic fat burners are supplements designed to increase metabolic processes that naturally burn fat in the body. While some fat-burning supplements claim to burn fat specifically through chemical reactions, thermogenic fat burners work to accelerate the body's natural processes of generating internal heat. While the different ingredients in competing fat burners may have specific mechanisms of action, the goal of all of these supplements is the same.
Research on how to combat obesity has revealed the benefits of thermogenic fat burners as supplements for exercise and a healthy diet. Capsaicin also increases the rate at which the body uses fat for fuel, a process known as fat oxidation.