1000-Lb Sisters season 6 star Tammy Slaton has lost so much weight, and her new lifestyle proves that she’ll continue her incredible weight-loss journey. Over the years, Tammy has completely transformed her life and her body, and she continues to hit new milestones. It’s impressive that Tammy’s come so far since the show premiered in 2020. Back then, she weighed over 600 pounds. Despite her doctors’ warnings and her diminished quality of life, she continued to gain weight, getting up to 720 pounds at her heaviest.