How many times have you read that you need to eat clean, start juicing or only eat foods that have a specific number of ingredients? The advice may be compelling, and even sound science-y, but in the age of Google and information overload, you have to be careful about who you’re turning to for advice.

That’s why, to separate food facts from fiction, I turned to the real nutrition pros— my fellow registered dietitians (RDs). RDs have undergraduate degrees (and often graduate degrees, as well) from accredited programs, complete at least 1,200 hours of supervised practice, pass a registration exam and meet continuing education requirements in order to maintain their professional status. Let’s just say they know a thing or two. Here are their top food misconceptions they’d prefer you’d forget.