Even if a diet is good and easy to follow, it does not mean that it will work for everyone. Every individual is different. They have different health goals, eating habits and different metabolism. What works for others might not necessarily work for you as well. So, just because your family member is following it, you do not need to do the same. Evaluate your daily routine and health condition then try it out for a brief period. If you do not witness any changes move on. Do not keep going with it even if you do not see any result.