“I’m part of the Berkey cult. Before I bought mine about 5 years ago, I searched YouTube, and there were a whole mess of videos available, many by survivalist/prepper types. Some of them did send water samples to labs, which verified all the info on the Berkey website. I figured if the Berkey filter was good enough for crazy survivalists, it was good enough for me.”
Mark Sisson is the founder of Mark’s Daily Apple, godfather to the Primal food and lifestyle movement, and the New York Times bestselling author of The Keto Reset Diet. His latest book is Keto for Life, where he discusses how he combines the keto diet with a Primal lifestyle for optimal health and longevity. Mark is the author of numerous other books as well, including The Primal Blueprint, which was credited with turbocharging the growth of the primal/paleo movement back in 2009. After spending three decades researching and educating folks on why food is the key component to achieving and maintaining optimal wellness, Mark launched Primal Kitchen, a real-food company that creates Primal/paleo, keto, and Whole30-friendly kitchen staples.