Disclaimer: I am not a fitness trainer or a dietitian or a nutrionist. I have no background in any of those fields either. I am writing this based on my personal experience.
Recently there has been an increasing number of interest regarding fitness among my friends. Mostly are trying to lose weight while few are trying to gain weight and get muscular. Regardless of their intention I am happy for them. Unfortunately I find some of those who are trying to lose weight are concerning too much of getting the result fast. They were willing to try things such as avoiding carbohydrate, skipping dinner, and consuming way lesser than they should.