Ever wonder how to curb sugar cravings or which fad diet is right for you?

The Biggest Loser's season 5 champ Ali Vincent answers those questions and more just for UsMagazine.com readers in her exclusive video blog. (Watch above).

Still want to know more?

Leave your diet or fitness quandry in the comments section and Vincent will answer additional questions in the coming weeks.

The Biggest Loser airs Tuesday at 8 p.m. (EST) on NBC.