Adam Richman "Man v. Food" host Adam Richman. Photo by: Kim/TheGirlsNY. Image taken on May 25, 2012. Photo: Flickr/CreativeCommons

Fresh off an impressive 70-pound weight loss, “Man v. Food” host Adam Richman is now being accused of engaging in a shockingly dark social media feud with fans.

According to reports, Richman, 40, who has starred on four seasons of the Travel Channel program, insulted viewers and suggested one commit suicide in a rant in the comment section of one of his since-deleted Instagram posts. The photo showed his slimmed-down figure and reportedly used the controversial hashtag #thinspiration.

“Had ordered this suit from a Saville Row tailor over a year ago. Think I’m gonna need to take it in a little… #Victory #EyesOnThePrize #AnythingIsPossible #fitness #transformation #thinspiration,” read Richman’s original post.

Following the image's release, screencaps obtained by Medalite show that Richman responded in a series of derogatory posts to upset commenters after some tried to explain the meaning of the slang term “thinspiration.” (It refers to an image of a skinny individual used to promote eating disorders in an attempt to remain thin.)

“DILLIGAF?”-- A term short for “Does it look like I gave a f**k?”-- Richman reportedly first told 27-year-old "fat activist" blogger Amber, who claims to have “politely” expressed her views regarding the term to Richman, only to later allegedly be called a “c**t” by the TV host in non-screencapped post.

After allegedly receiving the curse-laden reply, the blogger slammed the Richman for using “slurs,” only to get more abuse from the Travel Channel star. “Give me a f**king break. If anyone acts like a cunt I’ll call them one. It’s not misogyny, it’s calling a spade a spade,” Richman said, adding a short apology. “If my use of the hashtag offended you, it was unintentional & for that I’m sorry."

Despite his apology, Richman reportedly continued his rant by suggesting that one fan upset by the hashtag to commit suicide. “I legitimately don’t give a f**k about haters & close minded internet loudmouths like you,” Richman replied to one Instagram user. “Seriously grab a razor blade & draw a bath. I doubt anyone will miss you.”

Another fan also reportedly received an equally hurtful message after requesting an apology from Richman, the TV star allegedly replying, “Only f**kup it seems was your Dad’s choice to go without a condom.”

“He told a friend of mine to kill herself, told another to eat a bag of s**t, and completely went on the attack, lacking any modicum of class or decorum. He then blocked anyone who called him out (myself included) regardless of whether their comment was rude or polite,” Amber said of the situation on her activist blog. “You know what? It doesn’t feel good to be called out publicly when you do something wrong, especially by multiple people. It’s uncomfortable. But these responses are completely unacceptable.”

Richman has reportedly since released apologies on Twitter and Instagram, both which have since been removed.