Why is Amy Taking Tammy’s Place On 1000-lb Sisters. Amy Slaton is the star of 1000-Lb. Sisters. Amy has exceeded expectations by establishing a successful career in the entertainment industry and starting a family….On the show, Amy Slaton fearlessly shared her hard life with the world. Despite the fact that Tammy, her older sister, is more well-known for her snarky temperament, Amy has had her fair share of the spotlight too…But it seems that there is a chance of Amy taking her sisters’ place on the show… How? Well, that is what we are about to show you, so let’s roll.