awesome. and 40 pounds in 4 weeks isnt unhealthy at all. the fitness industry puts all these problems our way like you can only lose 2 pounds a week or some shit like that. all these anxieties that make us be weary of working out to hard or dieting too hard. the meal frequency thing is a myth too, food has barley anything to do with metabolic rate, your metabolism is always going. starvation mode happens when you get to 5 percent bodyfat. there are studies.

awesome for your friend cutting all that weight