VIDEO : How Much Pounds Kim Kardashian Lost Since Giving Birth to Saint West?

Kim Kardashian is adamant on dropping those pregnancy pounds. The mom-of-two, who is on the Atkins diet to help her shed weight, has just revealed that she?s lost 42 pounds since giving birth to son Saint West. Kardashian, 35, writes on her app, ?Getting back in shape after I had North was SO tough. I?m in the middle of doing the same thing right now after having Saint, and I?m so excited that I?m 42 lbs. down!?