(NEW YORK) — As truth wars go, Vani Hari of the Food Babe blog has produced a doozy. The former management consultant turned healthy-living activist has a best-selling book and an army of supporters. And with the help of her fans, she’s led numerous successful online petitions to persuade food industry giants to rid their products of ingredients she deems unacceptable. What Hari doesn’t have, critics argue, is a background in related sciences or nutrition.