"For those commenting on how 'fat' I've become." This Walking Dead star just slammed her trolls.

Walking Dead star, Alanna Masterson, has turned her talents to fighting real-world trolls.

The 28-year-old actress, who slays zombies as Tara on the hit show, has slammed body shamers in a powerful Instagram post.

“Before you decide to make a comment about my chest being ‘too large’ or how ‘fat’ I’ve become, just know that this little girl got the best start to life,” Masterson wrote alongside a photo of her daughter, Marlowe.

“I wouldn’t have changed it for a second. I would’ve gladly continued to eat enough calories to produce milk for her little bones to grow.”

“Also, grow the f**k up,” she added.

Dear Instagram trolls, body shamers, and the men and woman who think it’s ok to comment on my weight: I hope that you don’t have children. And if you do, I hope you teach them about kindness and acceptance. I hope they learn that it isn’t ok to make fun of people or call people names. I hope one day YOU learn what it takes to be a parent. A kind, selfless parent. A working parent. A parent that puts themselves in someone else’s shoes. Maybe you can’t get it through your thick fucking skull, but nursing a baby for a year (and pumping in a van between takes, in the dead of summer in Georgia) is a lot of work, determination, and scheduling. So before you decide to make a comment about my chest being “too large” or how “fat” I’ve become, just know that this little girl got the best start to life. I wouldn’t have changed it for a second. I would’ve gladly continued to eat enough calories to produce milk for her little bones to grow. Also, grow the fuck up. Your mother should be ashamed for raising such a judgmental bully. I’m sure she knows how “courageous” you must be for trolling and hiding behind your Iphone and computers. P.s. I would LOVE to see any man or woman give birth to a baby, nurse the baby, and then work 17 hour days and NAIL their own stunts. P.s.s. Be kind to each other. We need it now more than ever. ❤️✌????️

A photo posted by Alanna Masterson (@lucytwobows) on Nov 29, 2016 at 2:32pm PST

The new mum, who gave birth in November last year, was responding to comments about her weight.

Masterson said she hoped people trolling her over her size didn’t have children, but in case they did – she had some advice.

“I hope one day YOU learn what it takes to be a parent. A kind, selfless parent. A working parent,” she wrote.

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The actress, who breastfed her daughter between takes, revealed it took a lot of work, determination and scheduling to return to the set.

“I would LOVE to see any man or woman give birth to a baby, nurse the baby, and then work 17 hour days and NAIL their own stunts,” she said.

She finished her post by pleading for fans to be kind.

“We need it now more than ever,” she said.

Slaying zombies, round-the-clock feeding and taking on her trolls makes Masterson our new celebrity mum hero.