Addressing the allegations on Twitter Friday, the 32-year-old posted: "It sucks when people make up surgery or Photoshop lies when I am so disciplined and work so hard. Just trying to motivate others and show anyone struggling with weight they can totally achieve whatever they want if they are dedicated."
Kardashian recently revealed she has lost more than 50 pounds since giving birth to her daughter, North West, in Los Angeles in June.
