I am assuming that you did the test in the book to see if you were carb intolerant or affected by calories...

As far as the low carb part , you can have UNLIMITED protein and 20g of carbs so for me... I eat cantaloupe for breakfast which is normally a big chunk of my carbs for the day (usually like 10)
I have tuna w/some hardboiled eggs for lunch and some sort of meat/cheese and green beans for dinner for snack I eat a sugar free jello w/cool whip.
Also I might snack on pork rinds or sunflower seeds...

Really the only portion control you need is when carbs are involved...ex// fruit and veggies etc..

I will only stay on the first phase for a week,the Monday I will increase my carbs to 40g...