paleo diet
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Unless you’ve been living under a rock for the past several years, you’ve probably heard someone touting the health benefits of the paleo diet. (Maybe it was one of the many celebrities who have given it props, like LeBron James, Kobe Bryant, Matthew McConaughey, Megan Fox, and Uma Thurman?) But before you start eating like a Flintstone, here’s what you need to know about the enduring caveman-inspired health craze.

What Is the Paleo Diet?

The Paleolithic Diet—also known as the paleo or caveman diet—is a meat-centric, low-carbohydrate diet that eschews grains, beans, dairy products, and refined sugars in favor of meat, fruit, and vegetables. It’s based around the concept that modern humans have been unable to adapt fast enough to handle some of the foods that have been created since the advent of agriculture, and that we should be eating a diet as close as possible to that of our caveman ancestors who actually lived during the Paleolithic era.

While it seems like a pretty modern phenomenon, it’s actually been around since the 1970s, when gastroenterologist Walter Voegtlin wrote “The Stone Age Diet” (which was self-published, and so is pretty difficult to find these days); it gained ground when Loren Cordain wrote his book “The Paleo Diet” (a term he subsequently trademarked) in 2002. But paleo didn’t become mainstream until the last several years: we first wrote about it building traction in 2011 when a paleo-themed restaurant opened in Germany. Since then, paleo’s only gotten more popular—take the success of Nom Nom Paleo (created by Michelle Tam, who we interviewed in 2017) for just one prominent example.

Danielle Walker's Eat What You Love: Everyday Comfort Food You Crave; Gluten-Free, Dairy-Free, and Paleo Recipes, $21.42 on Amazon

One of the more recent books on the subject (and a #1 best seller in its category on Amazon).
See It

Why Go Paleo?

Eating like a caveman emphasizes eating whole foods that are absent of gluten and dairy, both of which have been known to trigger allergic reactions. And because the diet provides few carbohydrates, it’s been known to bring on quick weight loss; with drastically fewer carbs, the body winds up burning stored fat instead. But in addition to aiding in weight loss and maintenance, according to paleo advocates, the diet prevents so-called diseases of civilization such as Type 2 diabetes and heart disease. In addition, many swear by its ability to reverse autoimmune diseases and diabetes, and even clear up skin.

Still, many studies have been inconclusive as to whether the diet will help you lose weight in the long run, or whether it has proven cardiovascular benefits. It’s also not without its naysayers. Michael Pollan, for one, was quick to say proponents of the diet were “blowing smoke.” Some scientists counter that there’s evidence Paleolithic beings did eat grains, and that they ate varied diets; still other critics cite The China Study, a large study that examined the correlation between animal products and chronic illnesses. If you want a personal opinion, check out the aformentioned interview with Michelle Tam, the so-called Queen of Paleo.

What’s Not Allowed on the Paleo Diet?

Just about all grains, such as wheat, corn, rice, barley, quinoa, and amaranth, are off-limits. So are beans and legumes like lentils and peanuts, since they weren’t part of our ancestral diet. Dairy, alcohol, overly salty foods, and added sugar aren’t allowed. Corn syrup, artificial colorings, preservatives, and flavorings are prohibited because they’re processed; for that reason, so are most vegetable oils. Say bye-bye to packaged snacks and convenience foods too—or as PaleoLeap puts it, “As a rule of thumb, if it’s in a box, don’t eat it.”

It should be noted that eating paleo is not the same as eating gluten-free (although it does have much in common with the Whole30). While this diet is naturally gluten-free, a gluten-free diet is not automatically paleo; gluten-free grains like rice and quinoa are prohibited on the paleo diet.

OK, So What Can You Eat on Paleo?

Paleo eating revolves around well-raised meat, fish, poultry, eggs, lots of fruits and vegetables, and nuts. Expect to eat a lot of animal protein; note that this can get expensive, and if you’re a vegan or vegetarian, this diet probably isn’t for you.

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You’ll also eat lots of non-starchy vegetables, although starchy tubers with lower glycemic levels, like sweet potatoes and yams, are OK to eat. Expect to ingest a whole lot of cauliflower, particularly in the form of cauliflower rice and cauliflower pizza crust.

Because most vegetable oils are off-limits, animal fats are popular; so are lesser-processed oils like olive oil and coconut oil. For any recipes that might traditionally call for flour, expect substitutions like almond meal, almond flour, or coconut flour.

While it’s not at all in keeping with the spirit of the diet, it’s technically possible to find some paleo fast food options, but in general, it’s tough to find good paleo-friendly options while dining out. Luckily, there are plenty of make-at-home menu options, and within the stated limitations, you can eat whatever you want, whenever you want.

Check out our Paleo Meal Prep Guide for more info.

Is Paleo the Same as Keto?

More Keto InfoWhat Exactly Is the Keto Diet?No. The paleo and keto diets do have a lot in common, most importantly an emphasis on whole, nutritionally dense, fresh foods, but they’re not identical. In general, keto puts a higher emphasis on cutting carbs and tends to be higher in fat than paleo. To do keto correctly, you need to monitor macros and calories pretty strictly, but paleo is more about simply focusing on unprocessed ingredients that fall within the parameters of a pre-civilization style of eating (call it a hunter-gatherer diet if that helps). On keto, you’re a lot more limited; with paleo, less so. Neither diet encourages consuming much sugar, for instance, but if you’re paleo, you’re free to use moderate amounts of raw honey or maple syrup (among other natural sweeteners) since they’re both whole, minimally processed foods that have been around for eons—whereas keto says no to both honey and maple syrup because they’re high in carbs. Instead, you’d look to a sugar substitute like Swerve or stevia if you were going keto. (Honestly, there’s a lot to be said for just practicing mindful eating!)

Paleo Diet Recipes

Still interested in trying out a modern paleo diet for yourself? A lot of healthy recipes are naturally paleo-friendly, but here are a few options that’ll help you get started.

Wilted Greens with Balsamic Fried Eggs

Wilted Greens with Balsamic Fried Eggs recipe


Dandelion greens and fried eggs are a protein-rich start to the day. Get our Wilted Greens with Balsamic Fried Eggs recipe.

Roots Juice

Healthy Paleo Whole30 Roots Juice recipe


A sweet, earthy pick-me-up of parsnips, carrots, beets, and apple. Get our Roots Juice recipe.

Roasted Spaghetti Squash

Roasted Spaghetti Squash recipe


If you’re missing grains, try substituting spaghetti squash for pasta, but eliminate the Parmigiano-Reggiano, which contains dairy. Get our Roasted Spaghetti Squash recipe.

Snapper Ceviche with Chiles and Herbs

Snapper Ceviche with Chiles and Herbs


Try citrus-cured fish with chiles and herbs, with sweet potato chips for dipping. Get our Snapper Ceviche with Chiles and Herbs recipe.

Seared Salmon Fillet

Seared Salmon Fillet recipe


A basic salmon fillet would make a nice topper to any green salad. Get our Basic Seared Salmon Fillet recipe.

Easy Broiled Chicken Breasts

Easy Broiled Chicken Breasts recipe


Serve broiled chicken breasts with mashed yams for a hearty dinner. Get our Easy Broiled Chicken Breasts recipe.

Paleo Crock-Pot Carnitas

Paleo Slow Cooker Carnitas recipe

40 Aprons

Slow cook pork to fork-shredding perfection and serve it over baked sweet potatoes or cauliflower rice, for starters. Get the Paleo Crock-Pot Carnitas recipe.

Paleo Sweet Potato Waffles

Paleo Sweet Potato Waffles recipe

A Saucy Kitchen

Eggs, coconut flour, and sweet potatoes make for satisfying waffles you can eat for dinner or brunch. Get the Paleo Sweet Potato Waffles recipe.

Paleo Egg Roll in a Bowl

Paleo Egg Roll in a Bowl recipe

Whole New Mom

Egg roll wrappers aren’t allowed, but this quick and easy stir-fry replicates the filling and is packed with lean protein and veggies. To make it paleo, be sure to swap in coconut aminos for the soy sauce. Get the Paleo Egg Roll in a Bowl recipe.

Small Batch Almond Flour Paleo Brownies with Raspberries

Small Batch Almond Flour Paleo Brownies with Raspberries recipe

Ambitious Kitchen

You’re not really meant to eat much in the way of dessert on paleo, but you also shouldn’t deny yourself completely. These small-batch paleo brownies are made with almond flour, coconut sugar (and coconut oil), and fresh raspberries. Get the Small Batch Almond Flour Paleo Brownies with Raspberries recipe.

More to Put on Your Paleo Plate

15 Recipes to Kick-Start Your Paleo Diet

Note: This article was originally published on March 15, 2015 and was updated with new text, images, and links on January 3, 2019.

Header image courtesy of MaraZe/Shutterstock.

Susannah Chen is a San Francisco–based freelance writer. When she’s not cooking or writing, she’s on the hunt to find the world’s best chilaquiles. Follow her on Twitter and Instagram.
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