 Microphone check opens this weekend at the E Street Cinema. Jason Braley, WTOP News. It's 8.53, so what are the pros and cons of a paleo diet? High-protein paleo diets have risks as well as benefits. A study in Geneva found that while paleo diets can help you lose weight, the excess protein can overwhelm the liver and even cause neurological disorders. The study's authors say it's important to weigh the risks and benefits of any diet with your doctor.