I've started Tim Ferriss diet on May/2013 and went strictly on it (no supplements, aka, PAGG) up to September/13 when I reached my goal (97->82kg). I did a body check-up (mostly on blood and urine tests) on November/13 and everything was fine. I never came back on milk+bread on breakfast and I got used to go low-fat 6 days a week. I'm not so strict on Tim's diet anymore but I'm still low-fat-oriented. I'm turning 40 this month. So far, this diet worked greatly for me. BTW: I got to know about Tim's book here in HN.

I must recall that the low-carb diet from Tim is focused on food with low glycemic index. The idea is to avoid the conversion of the carbs you eat into fat stored in your body.