Pegan is a mashup of “paleo” and “vegan,” describing a diet that pulls from both eating philosophies. Coined by physician Mark Hyman, MD, the pegan diet fills about 75% of your plate with plants while reserving the remaining 25% for high-quality animal proteins like grass-fed meat, eggs, and fish. Hyman introduced the concept formally in his 2021 book, The Pegan Diet: 21 Practical Principles for Reclaiming Your Health in a Nutritionally Confusing World.
How Paleo and Vegan Ideas Merge
Paleo and vegan diets seem like opposites. Paleo is typically low-carb and high-fat, built around meat, while plant-based eating tends to be lower in fat and higher in carbohydrates. The pegan framework focuses on what the two approaches actually agree on: eat whole, unprocessed foods, prioritize vegetables, avoid refined sugars and industrial oils, and choose high-quality fats.
In practice, a pegan plate looks more like a plant-based meal with a side of animal protein than a steak dinner with a token salad. Vegetables, fruits, nuts, and seeds make up the bulk of every meal, while meats, poultry, and fish act as complements rather than centerpieces. If you’ve ever heard the phrase “meat as a condiment,” that’s close to what pegan eating looks like day to day.
What You Can and Can’t Eat
The core of the diet is straightforward: load up on non-starchy vegetables, fruits (especially lower-sugar options like berries), nuts, seeds, and healthy fats from sources like avocado, olive oil, and coconut. For protein, grass-fed or pasture-raised meats, wild-caught fish, and eggs are all on the table.
The restrictions are where it gets more specific:
- Dairy: Cow’s milk, yogurt, and cheese are largely off-limits. Small amounts of sheep or goat milk products are acceptable, and some versions of the diet allow grass-fed butter.
- Gluten: All gluten-containing grains are restricted.
- Other grains: Even gluten-free grains are limited. When included, they should stay at no more than half a cup of cooked grains per meal. Black rice and quinoa are common choices.
- Legumes: Most beans are discouraged because of their potential effect on blood sugar. Low-starch options like lentils are allowed, capped at about 1 cup of cooked legumes per day.
- Processed foods: Refined sugars, artificial additives, and heavily processed oils are avoided entirely.
The 75/25 Ratio in Practice
The simplest way to think about building a pegan meal is to imagine your plate split roughly into quarters. Three of those quarters are filled with vegetables, fruits, nuts, or seeds. The last quarter is a serving of animal protein. A lunch might be a large salad with mixed greens, avocado, roasted sweet potato, walnuts, and a palm-sized piece of grilled salmon. Dinner could be stir-fried vegetables with a small portion of grass-fed beef over a half cup of black rice.
Snacks lean heavily on whole foods: a handful of almonds, sliced vegetables with guacamole, or a piece of fruit. The emphasis on whole, minimally processed ingredients means most packaged snack foods don’t fit.
Potential Benefits
The pegan diet’s strongest selling point is that it’s built almost entirely around vegetables, fruits, and healthy fats. Any eating pattern that dramatically increases your intake of whole plants while cutting refined sugar and processed food is likely to improve diet quality for the average person. The focus on quality animal protein (grass-fed, pasture-raised, wild-caught) also means a lower intake of the processed meats linked to chronic disease.
Because it limits refined carbohydrates and pairs carbs with fat and protein, the diet tends to produce more stable blood sugar responses compared to a standard Western diet. For people who feel sluggish after carb-heavy meals or who struggle with energy crashes, that shift can be noticeable.
Downsides Worth Considering
The restrictions on grains, legumes, and dairy remove several affordable, nutrient-dense food groups. Beans and lentils are among the cheapest sources of protein and fiber available, and capping them at 1 cup per day (while eliminating most varieties altogether) makes the diet more expensive and harder to sustain, especially for people on a budget.
Cutting dairy also removes a major source of calcium and vitamin D for many people. If you follow a pegan diet long-term without deliberately replacing those nutrients through other foods (leafy greens, sardines, fortified alternatives), gaps can develop. The same applies to B vitamins commonly found in whole grains and legumes.
There’s also the practical challenge. Grass-fed meat, wild-caught fish, and organic produce cost significantly more than their conventional counterparts. The diet works best for people with the budget and time to shop and cook from scratch regularly. For households that rely on pantry staples like rice, beans, and pasta, the transition can feel restrictive rather than freeing.
How Pegan Compares to Mediterranean Eating
The pegan diet shares a lot of DNA with the Mediterranean diet, which also emphasizes vegetables, healthy fats, fish, and limited red meat. The key difference is that the Mediterranean diet freely includes whole grains, legumes, and moderate dairy, all of which are restricted on a pegan plan. The Mediterranean diet also has decades of large-scale research supporting its benefits for heart disease, diabetes, and longevity. The pegan diet, by contrast, is relatively new and hasn’t been studied as a standalone eating pattern in clinical trials.
If you’re drawn to the pegan philosophy but find the restrictions too tight, a Mediterranean-style approach delivers many of the same principles (whole foods, plants first, quality protein) with fewer limitations and a stronger evidence base behind it.