This Morning favourite Alison Hammond has announced that she's been diagnosed as a pre-diabetic.The bubbly presenter, 45, shared the personal news update on Tuesday's edition of ITV daytime show.Alison appeared on the latest edition of the programme to dish the latest I'm A Celebrity gossip but ended the segment by giving fans her health update.The ITV star explained: "I have had some news, guys, I am willing to share if you've got the time."I have found out that I am pre-diabetic, so I really need your help, and I have got to change my ways."If you see me out there buying any chocolate or sweets, please, please I am begging you, I am not allowed to have it."I've got to change my ways, this is serious now, pre-diabetes.Holly Willoughby and.