We knew Jack Donaghy looked sharper in a suit this season on 30 Rock.
Backstage at the Screen Actors Guild Awards on Sunday, Alec Baldwin told Access Hollywood he was diagnosed with diabetes in May 2011 and proceeded to lose about 30 pounds in four months. His trick?
"I gave up sugar," the actor said, adding that "I do Pilates and spin... When we're shooting and I can't work out, I just have to eat less. So I'm very conscious of that."
Baldwin - who took home the trophy for Outstanding Actor in a Comedy Series at the event - is actually dating a yoga instructor named Hilaria Thomas, but says the two of them rarely practice her trade together often.
The best news, of course? Baldwin's slimmer figure has not resulted in any less hilarious 30 Rocks quotes this year.
Also, he should probably live longer as a result of the diet.
[Photos, from August 2011 and January 2012: WENN.com]