Does drinking bulletproof coffee or bone broth negate the benefits of the fast?
Using bulletproof coffee or bone broth is an effective way to you get through a fast. It can provide the level of satiety needed to get you through the painful moments during an extended fast. The purpose of the coffee or broth would simply be to make the fast less painful. If fasting is going well and you can push through without it then you do not need it. Short fasts would be best served without the coffee or the broth. During longer and extended fasts it may be of benefit to drink bulletproof coffee early in the fast and then omit once 24 hours in. As mentioned already, if it helps you get through the fast then drink it as needed. One of the main benefits of fasting is lowering insulin and improving insulin sensitivity. With that being said, bone broth would be my second option as the protein in the broth can have an effect on insulin as well as shut off autophagy. Bulletproof coffee with ghee instead of butter is also a better option as ghee is the fat from butter. The production of ghee eliminates the protein and carb that is naturally in butter. MCT oil is a fat that will help raise ketones, which can provide an immediate source of energy for your brain as it easily passes through the blood brain barrier. In general, if you want the FULL benefit of the fast (i.e. autophagy) then black coffee, tea, and water will serve you best. Next would be bulletproof coffee with ghee and MCT oil (add some cinnamon as well). Finally, bone broth can serve as a way to keep you satiated during the fast. Not every fast is created equal, so have fun with it and try different techniques. The best fast is the one that works best for you.
The pros of caloric restriction through Intermittent fastingĀ