Aseem Malhotra is a controversial British cardiologist, public health campaigner, author of several books, and writer of newspaper articles. He campaigns for people to reduce sugar in their diet, promotes a low-carb and high-fat diet, and encourages the reduction of medical overprescribing. He was the first science director of Action on Sugar in 2014. He has been listed as one of The Sunday Times 500 most influential people and was twice recognized as one of the top fifty black and minority ethnic community member pioneers in the UK's National Health Service by the Health Service Journal. Malhotra is co-author of a controversial book called The Pioppi Diet.