That's awesome. And you know why he'll probably come back next year healthier? Because he was obviously ready to find this lifestyle.
That's the thing with advice and trying to help people, they have to be in the right place to be receptive. I was fat for 4 years and never really listened to anything anyone told me. Not because I wanted to stay fat, I just wasn't in the right headspace to be listening to anything like that. It's hard to articulate but eventually there really is a point where you're suddenly receptive and you want to learn about new things.