Mackenzie McKee isn't getting the thumbs-up right now. The 25-year-old "Teen Mom OG" star is getting slammed as her post-Thanksgiving weight loss promo raises eyebrows, with the former cheerleader and mom of three's Boom Bod Instagram post now littered with critical feedback. Mackenzie, followed by 1 million, updated her Instagram shortly after Turkey Day, with a paid paternship post seeing the MTV face pouring out Boom Bod shots while in her kitchen and in a sports bra. Fans, seemingly unimpressed, have been airing their thoughts. Check it out below.