Fat burners are dietary supplements that can support weight loss efforts by stimulating metabolism and promoting lipolysis, which is the breakdown of fats. They often work through thermogenesis, increasing the body's energy expenditure. Substances such as caffeine, CLA (conjugated linoleic acid), or L-Carnitine are commonly used in these products for their potential effects on fat burning. However, it's important to note that the effectiveness of fat burners can vary from person to person and they do not replace a balanced diet and regular physical activity. Additionally, it is crucial to consult a healthcare professional before starting to use such supplements, as they can interact with other medications and are not suitable for everyone. Indeed, some studies suggest that the effect of fat burners on weight loss is modest and they should not be considered a miracle solution.