A pegan is someone who follows the pegan diet, a way of eating that combines principles from both paleo and vegan diets. The name itself is a mashup of those two words. Dr. Mark Hyman, a functional medicine physician, coined the term and published a book on the concept in 2021. The core idea is simple: fill most of your plate with plants, add small amounts of high-quality animal protein, and avoid processed foods, most grains, dairy, and sugar.
How Paleo and Vegan Merge
Paleo and vegan diets seem like opposites. Paleo emphasizes meat, fish, and eggs while cutting grains and legumes. Vegan eliminates all animal products entirely. The pegan approach pulls what it considers the strongest ideas from each: the vegan emphasis on vegetables as the foundation of every meal, and the paleo focus on whole, unprocessed foods with quality animal protein in moderation.
In practice, this means vegetables and fruits make up the majority of what you eat. Meat, fish, and eggs play a supporting role, more like a side dish or condiment than the centerpiece. The result looks less like either a paleo or vegan plate and more like a produce-heavy Mediterranean-style diet with stricter rules about grains, dairy, and sugar.
What You Can Eat
The pegan diet is built around a few categories of whole foods:
- Vegetables and fruits: These form the bulk of the diet. Low-sugar fruits like berries are preferred over tropical fruits, and non-starchy vegetables are emphasized.
- Healthy fats: Olive oil, avocado oil, nuts, seeds, and avocados are staples. These replace the refined vegetable oils (like soybean or corn oil) that both paleo and many plant-based advocates discourage.
- Animal protein: Small portions of sustainably raised, grass-fed, or pasture-raised meat and wild-caught, low-mercury fish. Think of protein as a side dish, not the main event.
- Limited gluten-free grains: Black rice and quinoa are allowed, but in small amounts.
- Limited legumes: Beans and lentils are capped at roughly one cup per day.
What Gets Restricted
The list of foods to avoid or strictly limit is where the pegan diet feels most restrictive. Bread and most grains, including barley, oats, and wheat, are off the table. Conventional dairy from cows is excluded. If someone wants to include dairy at all, the recommendation is to choose sheep, goat, or A2 cow’s milk products. A2 milk doesn’t produce a specific protein fragment during digestion (beta-casomorphin-7) that may trigger the gut discomfort many people blame on lactose intolerance.
Refined sugar and desserts are heavily limited. Processed foods, artificial additives, and industrial seed oils are avoided entirely. The diet doesn’t set calorie counts, portion sizes, or meal timing rules. Instead, it relies on food quality as the guiding principle: if it didn’t exist 10,000 years ago or couldn’t grow in a garden, it probably doesn’t belong on the plate.
The Logic Behind the Rules
The pegan diet is designed around reducing inflammation and keeping blood sugar stable. Heavily processed carbohydrates and added sugars cause rapid spikes in blood sugar, which over time can drive insulin resistance and chronic inflammation. By centering meals on vegetables, healthy fats, and moderate protein, the diet naturally keeps the glycemic load of each meal low.
There’s solid evidence supporting the general pattern, even if the pegan diet itself hasn’t been studied as a standalone protocol. A meta-analysis published in Frontiers in Nutrition found that anti-inflammatory dietary patterns were linked to significant reductions in high-sensitivity C-reactive protein (a key marker of inflammation in the body), along with improvements in blood pressure and cholesterol profiles. The pegan diet’s emphasis on plants, healthy fats, and whole foods aligns closely with what these anti-inflammatory diets look like in research settings.
Potential Nutritional Gaps
Any diet that restricts entire food groups creates the possibility of falling short on certain nutrients. The pegan diet’s limits on grains, legumes, and dairy mean you need to be intentional about filling some common gaps.
Calcium is the most obvious concern when dairy is largely removed. Vegans consistently show lower calcium intake and lower bone mineral density compared to people who eat dairy regularly. On a pegan diet, leafy greens, sardines (with bones), and fortified plant milks can help bridge this gap, but it takes planning.
Vitamin B12 is another one to watch. While the pegan diet does include animal protein (which provides B12), the portions are small. Research on plant-heavy diets shows that vitamin B12 deficiency affects roughly 44% of vegans and 32% of vegetarians. Pegan eaters are less vulnerable because they do eat some meat and fish, but if animal protein intake is truly minimal, supplementation may still be worthwhile.
Iron and zinc present a subtler challenge. Plant foods do contain both minerals, but in forms the body absorbs less efficiently. Studies show that even when total iron intake is similar between plant-based and meat-based eaters, iron status and zinc status tend to be lower in those eating mostly plants, with higher rates of deficiency. Women are particularly affected. The Institute of Medicine estimates that people eating predominantly plant-based diets need about 1.8 times more dietary iron to compensate for the lower absorption rate.
Omega-3 fatty acids from fish (EPA and DHA) are also worth noting. Vegans and vegetarians get dramatically less of these fats compared to regular fish eaters. Vegans average around 31 milligrams of combined EPA and DHA daily, well below the recommended minimum of 250 milligrams. Because the pegan diet encourages some fish consumption, this gap is easier to close, especially if you choose fatty fish like salmon or sardines a couple of times per week.
Who It Works Best For
The pegan diet tends to appeal to people who find strict paleo too meat-heavy and strict vegan too restrictive on protein options. It works well for those who already enjoy cooking with whole foods and don’t mind spending more on groceries, since grass-fed meat, wild-caught fish, and organic produce come at a premium.
The flexibility around portion size and meal timing makes it more approachable than diets with rigid calorie or macro targets. But the restrictions on grains, legumes, and dairy can make it harder to follow in social settings, while traveling, or on a tight budget. Beans, rice, and bread are among the most affordable and accessible foods globally, and limiting them removes some of the cheapest sources of nutrition available.
For people already eating a standard Western diet heavy in processed foods, moving toward a pegan-style pattern would almost certainly improve diet quality. Whether you need to follow every rule strictly or simply borrow the general framework of “more vegetables, better fats, less processed food” is a personal decision. Many of the benefits come from what the diet adds (more produce, more whole foods) rather than what it eliminates.