She was fine in season 5 and part of season 6, but she was written out most of the season due to pregnancy. Now that's she's back and HAD her child, she's as fat as ever and it's incredible obvious she ballooned up. Unlike Eugene's actor who was always fat and just kind of remained that way. It's a total plot hole to have Tara suddenly fat after being gone 2 weeks (in show time line.)