If I’m so Smart Why Can’t I Loose Weight? 2005

I’m reading Brooke’s book If I’m So Smart… and I see it was written in 2005. Since writing this book is there anything in it that she has updated with newer information/research I should be aware of or take into consideration when practicing the principles? Or is there any supplemental information in scholars I should pay attention too if weight loss is my focus? (I’ve watched most of the weight loss course she has in here!) thank you!