**4. Conclusion**

Overweight and obesity are considered major risk factors for the number of non-communicable diseases like type 2 diabetes mellitus, non-alcoholic fatty liver, dyslipidemia, heart disease, some types of cancers, and many more. The main cause of overweight and obesity is increased fat mass; as all fat depots are not equally created. As we know that, adipocytes are present in WAT, contain large single fat droplets that act as a reservoir for energy storage. On the other hand, BAT play a specific role in thermoregulation. In this chapter, emphasis is given on some dietary components that have the potential to activate the regulation of BAT or beige fat development. Moreover, various clinical studies and trials showed that dietary components like PUFAs, curcumin, resveratrol, menthol, capsaicins/capsinoids, green tea, and many more when supplemented in adequate quantity show thermogenic effects. Therefore, further research is required to define and describe the methods by which these dietary components can be incorporated into the diet as well as about the bioavailability of these dietary components. Nevertheless, it can be stated that these dietary components may act as a boon in ameliorating the condition of overweight and obesity in the future.
