• Share
  • Tweet
  • Share

Kylie Jenner said earlier this year that she had gained weight within months—15 pounds to be exact. So she set off to drop the pounds and get into shape...and made a surprising discovery.

Wearing a cleavage-baring white jumpsuit and blue hair extensions (which she has since removed), the 17-year-old Keeping Up with the Kardashians star recently talked to E! News at the launch of her Kylie Hair Kouture extension line at Bellami Beauty Bar about her new diet.

"I'm working out and I'm eating a lot better," she said. "Well, I didn't realize I was lactose intolerant. I just became lactose intolerant like, this year. And I love like, cheese and everything so I'm so mad but, I dunno, I just, it was my year to eat bad. I was like, while I'm young, I might as well. I didn't care about a diet or anything. But now, this last month, I've been working on it just for health reasons only."

Her 31-year-old sister Khloé Kardashian, who has lost a lot of weight over the past year and has been kicking butt at the gym, is an "inspiration," Kylie said.

However, she too made a shocking discovery about her own body.

"She actually found out, which is interesting—I don't know if she wants me to tell people this, that she was allergic to coconut oil and she was cooking everything with coconut oil," Kylie told E! News. "So then she stopped that and then she like, lost all the water weight. She she's doing really great."