The Biggest Loser: Families

The Biggest Loser: Families is the sixth season of the American reality television show The Biggest Loser. The season premiered on September 16, 2008 and concluded with a live finale on December 16, 2008. This season featured eight teams of two; four of the teams were a parent/child relationship, while the other four were spousal relationships. Alison Sweeney returned as host.

Jillian Michaels served as trainer for the parent/child teams, while Bob Harper served as trainer for the spouses. In Week 5, the teams were formed into two teams of ten. The game became individual in Week 8.

This season was preceded by The Biggest Loser: Couples, and followed by The Biggest Loser: Couples 2 on January 6, 2009.