@mikebike: picture yourself in a lush, people-free, rich forest with nothing but a weapon and some matches. What would you *not* be able to eat? Then completely avoid those.
A wolf ("real dog") compares to a chihuahua ("new dog") as a blue berry compares to a big, sweet hybrid mango. Get my point? (Stick to "real" foods)
Move slow and often, and lift heavy things once in a while. Get sunlight when you can.
Do all of the above and you will be perfectly fine. No need to count calories or portions, eat whenever you feel hungry and until you are satiated. Your body will recover it's ability to self-regulate, fat will melt-off seamlessly, healthily and you will feel great. I know it sounds too good to be true, but it works. Good luck.