The Beef and Butter Fast Experiment If you’ve been around the low-carb and keto world for a while, you’ve probably heard of the Beef and Butter Fast—a short-term, high-fat, ultra-simplified carnivore approach to jumpstarting weight loss, reducing inflammation, and identifying intolerances. But does it actually work? I’m about to find out (officially starting Monday, February 17th) with a one week experiment – and since a lot of you have expressed interest in trying it too, we’re ...