During the winter months is when people usually put on a few pounds, but the opposite is true for the Duchess of York, Sarah Ferguson. She showed off her 50-pound weight loss at the NYC premiere of The Theory of Everything.

She has been ridiculed in the British tabloids for her weight, and revealed earlier this year that she planned on making some changes. She's been on a weight loss journey for some time now, and it's certainly paying off.

“Beatrice was an 8lbs. 8oz. baby and I was only 6lb off my full-blown pregnancy weight,” she told Hello magazine in March of her daughter, now 25. “I decided to make a change.”

Sources told People she’s “working on a health related project due to launch in New York,” and she has also previously been an ambassador for Weight Watchers.

Ferguson also told Hello, "I used to be so angry. I believed I was never going to lose theweight, that I had lost control. I couldn't fit into any of my clothes. I was just drowning in eating, drowning in food."

She has been referred to as the 'Duchess of Pork' or 'Fat Frumpy Fergie' in the past, but it’s safe to say those headlines are tucked away in the past.

image via Famous/ACE/INFphoto.com