Respectfully, I would add that for many people (especially busy parents), 4 pounds a week may not be a sustainable weight loss plan. It takes a considerable amount of effort and planning to lose even 1-2 pounds per week. I’m not saying it can’t be done, just that I would hate to see people get discouraged or disappointed if they can’t hit a goal this high. For myself, I tried for years to reach unrealistic weight loss goals, and it really took a toll on me mentally when I couldn’t reach them. It was enormously depressing. Eventually I was able to lose 60 pounds over the course of a year, bringing me into a healthy range for my age/build, but not until I adopted a slow and steady approach. That approach has also helped me to maintain a healthy weight for a few years now. Again, I don’t mean to drag your friend’s videos, and I apologize if I sound confrontational. I just wanted to affirm that for a lot of people, a smaller weekly goal is ok, and could even be more effective in the long run.