When it comes to achieving insurmountable goals, Biggest Loser season five winner Ali Vincent knows what it takes. And soon you will too! Vincent has agreed to share the diet and fitness strategies that worked for in a live Twitterview on Wednesday, January 23 at 3 p.m. EST. You'll learn more about her incredible transformation and the most important lifestlye changes you can make to achieve lasting weight loss. Submit your questions and follow along on Twitter using the hashtag #Shape2013.