Smoothies are generally discouraged on Whole30. However, if you must have one, choose a recipe with no added sweeteners and low-sugar fruits. This smoothie is more scoopable with a spoon, so you can slow down and savor it (important on Whole30!). The only sweet flavor comes from fresh raspberries — plus, this packs your bowl with fats from avocado and coconut milk.
The Primal Blueprint Cookbook: Primal, Low Carb, Paleo, Grain-Free, Dairy-Free and Gluten-Free by Mark Sisson and Jennifer Meier. Recipes include: Roasted Leg of Lamb with Herbs and Garlic, Salmon Chowder with Coconut Milk, Tomatoes Stuffed with Ground Bison and Eggs, and Baked Chocolate Custard. Recipes are simple and have limited ingredients. Complaints are the book is stuffed with unnecessary photos and proofreading could have been better, e.g. oven temperatures were left out. And recipes are not truly paleo. Despite what is on the cover dairy is used in some recipes. The Amazon reviews average to 4+ stars.
CrossFit programming is decentralized, but its general methodology is used by thousands of private affiliated gyms, fire departments, law-enforcement agencies, and military organizations, including the Royal Danish Life Guards, as well as by some U.S. and Canadian high-school physical-education teachers, high-school and college sports teams, and the Miami Marlins.
In fact, the health benefits of the paleo diet are unproven. "Our ancestors ate this way and didn't have many of the chronic diseases we do, but that doesn't mean the food they ate is the reason why; drawing that conclusion would be like saying we live three times longer than our Paleolithic ancestors because we eat fast food," says Christopher Ochner, MD, research associate at the New York Obesity Nutrition Research Center at St. Luke's and Roosevelt Hospitals. Still, a handful of small studies have tried to determine if a paleo diet is a healthier diet. One small study published in the journal Diabetologia found that the diet improved blood sugar over 12 weeks compared to a Mediterranean one that allowed grains, low-fat dairy, and oils, but it's hard to say whether researchers would come to the same results in a larger study.
A metaresearch group at Tilburg University in the Netherlands investigates scientists’ research methods and operations, scrutinizing questionable practices such as selective reporting of statistical tests and data massaging. The group instead advocates for practices such as preregistering studies and making experimental data immediately available for open external review and verification. Its members are optimistic that “the perverse incentives of careerist academia, to hoard data and sacrifice rigor for headline-generating findings, will ultimately be fixed.”