1000-Lb Sisters season 6 star Tammy Slaton has lost a lot of weight over the years, and her recent medical exam illustrated just how far she’s come. 38-year-old Tammy was a completely different person when she made her television premiere in 2020. When she stepped on the scale during the pilot episode, she discovered that she weighed 608 pounds. She would go on to gain even more weight, hitting 725 pounds at her heaviest.