1000-lb Sisters viewers slammed Amy Slaton's "toxic sibling" behaviour towards sister Tammy as the new season airs on TLC in the USA.
Fans hit out at the reality star's outbursts towards her sister in the network's new season four premiere, released in America only yesterday.
Following Amy and Tammy's weight loss journey, the new series will include plenty of drama – including Tammy's hospital trip and stint in rehab.