Former TOWIE star Lucy Mecklenburgh has slammed companies reaching out to her to promote “extreme” diet products on Instagram.The new mum, 28, who welcomed her son Roman with fiancé Ryan Thomas in March, took to the social media platform to discuss her post-baby body, and admitted to being “fed up” with being offered drastic products to help get back into shape.Talking to her 1.7 million Instagram followers, she said: “So many of you are asking me about my post yesterday when I said I've lost 4