Amanda Seyfried knows how powerful images can be, and she is speaking out about one influencer’s impact on viewers. Earlier this week, Instagram influencer Arielle Charnas hit up social media to share a shot of herself in a bikini, saying she’s “proud” of her body after welcoming two kids into the world.

Several followers took issue with the pic, saying that she was promoting an “unrealistic” and “unhealthy” body image to the world. One of the commenters was a friend of Seyfried’s who said she should cop to how how her “wealth made your workouts/body possible.” And if not, the pal noted, Charnas is “just perpetuating the patriarchal (totally unrealistic) notion that mothers should 'bounce back' after childbirth.”

Seyfried then hopped on the gram and posted her own thoughts on her feed. “F–k it- this is feed material. My very smart friend (again-not tagging) wrote this on a semi-influencer's feed and she blocked both of us (even though I didn't tag her-at least she's getting the message),” Seyfried wrote. “If we're ready to get paid for flaunting our lifestyle (and inspiring some in the meantime) we have to be open to the discussions surrounding what we're promoting.”

She continued: “We have to back ourselves up- not run away from the issues it presents. There are gray areas everywhere. Each of us has a chance to back ourselves- especially on this platform. If you know who you are- take a second to decide if what you're throwing out there is worth it- in the big picture.”

But then the comment section lit up in both comment sections. One follower told Seyfried: “thank you for speaking up and sharing your thoughts and engaging in the conversation — it is exhausting and seems Sisyphean, but you do make a difference. You have changed minds or, at the least, made people think — even though it took so much of your energy. Thank you for this! And thank you for being you.”

But Charnas fans backed her up too. Wrote one: “You look amazing, and more importantly you are feeling amazing.”