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Exclusive: Nick Jonas Talks About His Diabetes
Copyright 2008 Dave Hogan / Getty Images
With a new CD and a successful tour, The Jonas Brothers are on top of the world -- but their meteoric success was almost sidelined when Nick Jonas was told the gut-wrenching news that he had diabetes.

Tonight, "20/20" has an all-access pass behind the scenes of everything Jonas -- and "The Insider" has an exclusive first look!

"I went in to the doctor -- my lifelong pediatrician," explains Nick of his life-changing news. "She heard my symptoms and had this look on her face and just said, 'Okay, we're going to need to test your blood sugar.' And I was like, 'Huh, which finger, you know? Because I play guitar, so I'm going to make sure I don't do these things that are going to hurt me.' And she's like, 'It doesn't matter.'"

Once the blood test came in, Nick learned that he would be living with diabetes.

"Surely enough, my blood sugar was over 700; normal's about 70 to 120, so it was a lot higher than it should have been."

Airing at 10pm on ABC, “20/20” correspondent Juju Chang gets personal with Nick, 15, Joe, 18, and Kevin, 20, to discuss fame, music, rumored romances and coping with Nick's illness.

Watch "The Insider" for more with Nick and The Jonas Brothers.

Published 7/31/08.

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Comments (7)

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  • i lOve yOu Nick!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    HayouW 6/21/09 Reply
  • Hey nick My family has some people in my family have the same thing they r the sweetest people in the world i am sure u r like that too. When i found out what that song meant everyn time i hear it i start to cry and i feel bad for u by the way u r...
    Anonymous 11/15/08 Reply
  • I feel bad for nick. He is the really nice and he has to go though life with diabits i mean he has to get on some kind of stage every night or day and he still looks like he has all this energy
    Anonymous 11/15/08 Reply
  • hey NICK i am such a BIG FAN and it was sad to hear you are sick.I think you have have an amazing voice and great talents so i will keep praying that you get better .My heart tells me you will get through this.GET WILL
    tanesha_poole 8/26/08 Reply
  • don't worry alot of people have it inculding my brother he has had it ever since he was 11 it is difficult at first I know he is all ways saying he wants to be normal which he can be if he stays healty you can to and just know you have my support.
    Anonymous 8/13/08 Reply
  • I hope the insider puts this out in a positive way like Look at Nick Jonas he has Juv Diabetes & he can do anything.My daughter just came back from camp working with kids that have this & it can be managed not easy but it can
    Anonymous 8/3/08 Reply
  • but he is hot
    Anonymous 8/1/08 Reply