Amber Riley

If you've seen photos of Glee's Amber Riley at the NAACP Image Awards on Feb. 17, you probably noticed that the 26-year-old actress looked a bit different.

"I dropped two dress sizes!" she told People, about her new, slimmer figure.

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But how exactly did she do it? Riley credits the weight loss with a new diet and exercise plan. She cut out fast foods and "decided I was going to make a change and eat healthier."

The actress has been sticking with her regimen since last July, after she was forced to see a doctor due to chronic stomach pains.

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The seven-month health kick has obviously paid off. Riley says the costume department on set has had to tailor a lot of her pants and dresses to accommodate her slimmer frame. They've also had to buy "a lot of new clothes for me."

Even before losing weight, the Los Angeles-born actress considered herself a confident woman. "I've always been comfortable with my size," says Riley. "I just decided it was time to get healthy."