Reviewer: Emily Gonzalez, ND

You’ve heard of probiotics — the gut-boosting microorganisms found in yogurt, kefir, sauerkraut and other fermented foods. Probiotics are also another name for the beneficial bacteria found in your digestive tract. You may also know about prebiotics, a type of fiber in foods like asparagus and artichokes that feed those...

It’s the news you’ve been waiting for: everything’s better with butter, even your health. There’s a reason it’s in Bulletproof Coffee. Grass-fed butter and ghee are staples in the Bulletproof Diet, and packed with powerful nutrients and rich fats. But not all butter is created equal: just like grass-fed beef,...

Drinking the right amount of coffee is a delicate dance — too little and you’re still sleepy; too much and you’re wired. It turns out, figuring out the best dosage may boil down to mathematics. Scientists working for the US Army say they’ve developed an algorithm that tells you how...

If you tried paleo, you started eating real, nourishing foods, and you felt better. But, it’s a common complaint that people don’t lose weight on the paleo diet, or worse, gain weight There are several reasons you might not lose weight on the paleo diet. Maybe your carbs are too...

Not many people know this, but I spent years experimenting with different ways of eating before creating the Bulletproof Diet. One of these was a raw vegan diet. Spoiler alert: it didn’t work for me. In fact, it was harmful and it took a long time for my body to...

Researchers in Canada found that coffee helps your body produce ketones, and as participants drank more coffee, ketones in the blood increased.  What the study says: Drinking coffee in the morning increased ketone biomarkers by 88-116% for up to four hours after drinking it. Coffee consumption broke down fats in the...

Salt gets a bad rap. The American Heart Association (AHA) says to limit your daily intake of salt to a little over half a teaspoon. More than that (they claim) puts you at risk for high blood pressure and heart disease. That’s not even enough to season a grass-fed steak,...

Your mitochondria power every cell in your body. They turn the fats and sugars you eat into cellular energy that keeps your body running. If you make your mitochondria stronger, your whole body benefits from the increased energy. More efficient mitochondria make you live longer, too. On the other hand,...

A lot of people ask about the difference between collagen and gelatin. Both are great ways to support healthy skin, joints and bones, which we’ll explore below. First, here’s a quick primer on the differences between collagen and gelatin. Despite similar names and ingredients, they behave quite differently in food....

Let’s talk about cauliflower. This versatile vegetable’s nutrient profile and easy-to-cook nature make it a staple of the Bulletproof Diet. You can make cauliflower into a dozen different dishes, from cauliflower steaks to cauliflower rice to creamy cauliflower bacon mash (you’ll find all three of those recipes in Bulletproof: The...

A major part of the Bulletproof Diet (if you’re new to it, welcome) is high-quality meat. Grass-fed meat and wild-caught seafood are supreme sources of fat, cholesterol, protein, vitamins, and minerals that are tough to find elsewhere. Meat is a simple way to get a lot of nutrition, fast. It’s...

I wrote this article with the help of a Bulletproof team member who’s a recent college graduate. He started Bulletproof his first year of college and got his degree a few months ago. He picked up some pretty useful habits along the way, and not just ones for college students. These...

The first time I ever heard about coffee napping was way back when I launched the original design of the “caffeine: my drug of choice” t-shirt you may now recognize.  We sold it online in the earliest days of the internet. My colleagues and I used to talk about coffee...

This post is one of a series of new science posts focusing on topics from The Bulletproof Diet, available now online and in stores. It’s good to be back to writing more focused content on the blog now that the book is done. Enjoy!   The Bulletproof Diet is for people...

At the Ancestral Health Summit at Harvard University, one of the more interesting panels titled “Safe Starches: Are They Essential on an Ancestral Diet?” was moderated by Jimmy Moore, of Low-Carb Cruise fame. The panelists included Chris Kresser and Paul Jaminet, both guys I respect very much who argue that...

It’s easy for the Bulletproof Diet to become expensive. That’s because with food, as with most things, you get what you pay for. High quality healthy fats and proteins are expensive foods, but often not as expensive as some junk food. The human body isn’t constructed out of rice and...