The Biggest Loser

Season 13, Episode 2

Episode Title: Week 2

Air Date: 2012-01-10

Overview:

The teams bet on the percentage of weight they think they'll lose in order to gain an advantage at the weigh-in. Elsewhere, the contestants learn to shop for healthful foods; the teams compete in a puzzle-based challenge; and Dr. Huizenga performs sobering health assessments.