Losing 20 pounds is absolutely realistic, no matter who you are. However, the time it takes to do so is circumstantial to one’s body and lifestyle, and not putting the weight back on once you’ve lost it is another project in itself. One could go full keto and lose this weight in weeks. Yet, in many cases, many put the weight right back on once they stop being fully keto unless they transition gradually into a sustainable diet (modified keto diet, for example) and fitness (HIIT, strength training, etc.) routine.
Losing weight is one thing, but it is equally important to understand how to prevent ourselves from gaining it back. And to do this, you need to create a sustainable, balanced and accessible long-term fitness and diet routine that is practical for your everyday life.