Eat generous amounts of saturated fats like coconut oil and butter or clarified butter. Beef tallow, lard and duck fat are also good, but only if they come from healthy and well-treated animals. Beef or lamb tallow is a better choice than lamb or duck fat. Olive, avocado and macadamia oil are also good fats to use in salads and to drizzle over food, but not for cooking. For more information, have a look at our beginner’s guide to Paleo and fat.
Glassman has always been a fighter, an us-versus-them kind of guy, and as his company has grown, so has his arsenal: CrossFit now has seven lawyers on staff and at any given time is engaging 12 to 20 outside legal firms to pursue trademark-infringement cases. CrossFit has a database of more than 5,000 possible infringements and is litigating a dozen lawsuits in the U.S. and several more internationally.

When it comes to humans, we’re all just victims of our own biochemistry. Our brains are controlled and ruled by chemicals - from what we eat; to how and when we sleep; even to who we choose as a life partner. Biochemistry - or ‘biological chemistry’ - is concerned with all of the biochemical reactions which take place within our bodies and brains. This means that the simple act of eating a meal is actually composed of thousands of tiny...
Trying to devise an ideal diet by studying contemporary hunter-gatherers is difficult because of the great disparities that exist; for example, the animal-derived calorie percentage ranges from 25% for the Gwi people of southern Africa to 99% for the Alaskan Nunamiut.[39] Descendants of populations with different diets have different genetic adaptations to those diets, such as the ability to digest sugars from starchy foods.[39] Modern hunter-gatherers tend to exercise considerably more than modern office workers, protecting them from heart disease and diabetes, though highly processed modern foods also contribute to diabetes when those populations move into cities.[39]

Obesity, heart disease, and diabetes: These are just a few of the health conditions that proponents of thePaleolithic diet, or caveman diet, blame on our sedentary lifestyles and modern diets, which are loaded with sugar, fat, and processed foods. Their proposed solution? Cut modern foods from our diet and return to the way our early hunter-gatherer ancestors ate.

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.”
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