Chrissy Metz's character Kate Pearson on This Is Us was raised by an amazing, supportive family, which included a wonderfully loving (and hot AF) father, played by Milo Ventimiglia, but IRL, her upbringing couldn't be more different.
In her new book, This Is Me, Chrissy details her childhood growing up in a blended family, where her mother and biological father had separated and she was raised by a mean and abusive stepfather she calls Trigger.
According to Chrissy, Trigger, who married her mum and went on to have another daughter, Abigail with his wife, treated her very differently from the children he fathered and Chrissy's other half-sister, Morgana.
Metz says while Trigger was loving and affectionate toward his biological children and Morgana, he always seemed to resent her.
"My body seemed to offend him, but he couldn't help but stare, especially when I was eating," Metz wrote in an extract of her book, published by PEOPLE. "He joked about putting a lock on the refrigerator. We had lived with a lack of food for so long that when it was there, I felt like I had to eat it before it disappeared. Food was my only happiness."
Trigger allegedly subjected her to routine beatings -- "He would hit me if he thought I looked at him wrong," wrote Metz -- and humiliated her with forced weigh-ins.
"He sat in a chair next to the scale as I got on. 'Good God almighty!' he yelled every single time," Metz wrote. "The number then was about 140 or 130. Most of my friends weighed about 90 pounds. 'Why are you getting fatter?' he demanded. I look at pictures of me from that time, and I would be so fine with being that size now. But I thought I was gigantic. By then the beating had escalated. One time he hit me, and I looked right in his face. If I had a gun, I thought, I would shoot you."
The pain of the abuse only spurred on Chrissy's emotional eating and she began to hide her habit.
"I'd get up in the middle of the night and eat. I'd sneak food to eat in the bathroom. Cookies, chips. Things I could eat as fast as possible to avoid detection," she writes. "Things that would give me the brief bliss of numbness."
According to Chrissy, Trigger -- whose real name is Crayton Hodge -- has since shown remorse for the past and even wrote a letter to her when she moved to Hollywood saying he was proud of her and he loved her.
"That's all I ever wanted him to say," she wrote.
In a statement provided to E! Mr Hodge denies the allegations of abuse and said he had no idea Chrissy was going to make claims like this in her book.
"I don't remember things the way she does. I'll disagree with everything in there, except the part that I love her," he reportedly told E! News. Mr Hodge added, "I still love her as much as I ever have. I've taken care of her like she's one of mine and I would continue to do so in the future if need be."