TLC is known for having cracked into a niche of reality TV shows that leave watchers completely hooked.

Tammy began the show at 605 pounds and sister Amy weighed in at 406 pounds (viaYahoo!).

The show has explored their doctor visits and battles with maintaining a healthy diet for two seasons now.

Tammy and Amy Slaton promo photos

The trailer video showed the sisters clashing, a toxic boyfriend for Tammy, and Amy moving out.

It was drama filled two minutes so fans could only imagine the season to come.

However, with where the storyline is headed, fans have expressed their concerns over the show ending.

Amy and Tammy Slaton season 3 trailer