Hilary Duff is boasting a new svelte physique, after cutting chips (French fries) from her diet.

The SO YESTERDAY singer recently decided to cut the potato food out of her diet, and she's amazed at how quick she's able to reap the benefits.

Duff says, "I've made myself be really good for the last couple of months. I used to be obsessed with French fries. Like I'm the biggest French fry person in the world. I could eat French fries all day.

"I've been eating a little bit all throughout the day and I saw such a big difference so fast! Now I'm like, 'Yes, this is awesome!' And I'm still full all the time."

But Duff insists she'll never become a waif, adding, "I think it's feminine to not be so skinny. I like to look normal and I think it's also important for girls who look up to me to see that."