Nature's Best Isopure Coffee Espresso is pure whey protein isolate and a kick of real coffee to start your day. And it still comes with glutamine and nutrients, but no lactose or impurities, so it's easy to drink. Your gut will agree. Isopure coffee has 10.9 G of naturally occurring bcaa's in every serving and is lactose and gluten free. Isopure coffee also has 4.6 Grams of naturally occurring l-glutamine in every serving. Made with real coffee there are 80mg of caffeine per serving. The microfiltration process used to create isopure is so complete that it is the only completely clear whey protein when it is dissolved in water. Recipe tip using isopure coffee: for a rich, thick shake, mix 2 scoopfuls with 12 fluid ounces of water in a shaker or blender. If a shaker or a blender is not convenient, isopure coffee can be stirred into solution with a spoon.