You should definitely read up on it and ask your doctor if you are worried about the safety of a low carb diet. I use it every few months to cut weight for running and It has always worked well for me.
No. It is way too high in protein. I have known several people who have followed it & ended up with gall bladder surgery because gall stones form. South Beach is much better because you can eat more healthy carbs, & lose weight as fast as Atkins.