I'm gluten, soy, dairy, corn, egg, sugar (except for a nice glass of wine), peanut free. I put on weight with my pregnancy, of course, and lost 40 lbs immediately after I had my twins. But I've had a stubborn 20 lbs hanging around - partially due to breastfeeding. I went on an elimination diet and found out that I'm crazy allergic to gluten. I lost 10 lbs in 9 days after giving it up.
I decided to try to stick with what my ancestors prob ate... A tonne of meat and greens. I feel great. God, I hope they drank good wine!