Hiya Red, actually it is kinda hard to describe. Dr. Phil doesn't want to just tell us what to eat and when to eat it, he wants to look at why we gained weight in the first place AND help us make positive changes to make reaching our goal and staying there more likely.
I actually like his approach because it makes me think more about my eating habits and the things in my life or the way that I think about certain things could be attributed to what I put in my mouth. It's an overall broad approach to dealing with weight loss.
Now, he does explain very specifically what we should be eating and in what combinations and he emphasizes smaller (not SMALL, but SMALLER) meals about five-six times a day with lots of water, whole grains, veggies, fruits, dairy and meat. Exersize is also a big part of it. I've actually just started re-reading this book again and I only just finished Key 1 (there are 7 keys) but I have been following the eating plan (as close as I can considering the hoildays). I actually started last week. My first weigh in was down 2 pounds. This is great for me because I am a firm believer in doing things slow. In my previous experience when I lost too much too quickly I gained it right back plus some. Slow and steady wins the race!
Other's may want to add to this because I was probably too general, but I hope this helps, if you have any other questions, please contact one of us, we'd be happy to help!