Alec Baldwin

Sweet success ... Alec Baldwin gave up sugar to lose weight.

Alec Baldwin has lost almost 10 kilograms in the last three months by embarking on a new healthy eating regime.

The 30 Rock actor has been seen sporting a noticeably slimmer figure in recent weeks and has now told Access Hollywood the secret to his dramatic weight loss - he has simply given up eating sweet treats.

"I stopped eating refined sugars, desserts and sweets and things. I lost like 20 pounds (9 kilograms) in like three months from not eating that," he says.