Dr. Aseem Malhotra is a best-selling author, researcher, and one of the most well-known cardiologists in the U.K. His views on cholesterol and sugar, controversial primarily among those who choose to promote special interests at the expense of public health, have landed him in numerous front-page news articles and on primetime television shows. Here, Malhotra discusses his experiences moving from clinical practice into the public eye and shares the lessons he has learned about public health advocacy along the way.