The paleo diet focuses on foods that mirror what human ancestors ate during the Paleolithic era: meat, fish, vegetables, fruits, nuts, and seeds. It excludes grains, legumes, dairy, refined sugar, and most processed foods. The core idea is that human genetics haven’t changed much in the past 10,000 years, so our bodies are better adapted to pre-agricultural foods than to modern staples like bread, pasta, and cheese.
Below is a practical breakdown of what’s included, what’s off the table, and where the common gray areas fall.
Meats and Proteins
Animal protein sits at the center of the paleo diet. Grass-fed and pasture-raised options are preferred because they tend to have a better ratio of omega-3 to omega-6 fatty acids compared to conventionally raised animals, but conventional meat is still considered paleo-friendly.
- Red meat: beef, bison, lamb, venison, elk, pork
- Poultry: chicken, turkey, duck
- Organ meats: liver, heart, tongue (highly valued in paleo circles for their nutrient density)
- Game meats: rabbit, wild boar, pheasant
- Eggs: any variety, with pasture-raised preferred
Processed meats like hot dogs, deli slices, and most sausages are generally avoided because they contain preservatives, added sugars, and fillers. Bacon and prosciutto without added sugar or artificial ingredients are typically considered acceptable.
Fish and Seafood
Wild-caught fish is ideal on a paleo diet. Fatty fish like salmon, mackerel, sardines, and herring are especially encouraged because they’re rich in omega-3 fatty acids, which play a role in reducing inflammation throughout the body.
- Fish: salmon, tuna, cod, halibut, trout, bass, sardines, mackerel, anchovies
- Shellfish: shrimp, crab, lobster, mussels, clams, oysters, scallops
Farm-raised fish is less preferred but not excluded. The main things to avoid are breaded or battered seafood and anything packed in soybean oil.
Vegetables
Nearly all vegetables are paleo-approved, and they should make up a large portion of your plate. The diet emphasizes nutrient-dense, non-starchy options but doesn’t restrict starchy vegetables the way some low-carb diets do.
- Leafy greens: spinach, kale, arugula, Swiss chard, romaine
- Cruciferous: broccoli, cauliflower, Brussels sprouts, cabbage
- Root vegetables: sweet potatoes, beets, carrots, parsnips, turnips
- Others: zucchini, bell peppers, asparagus, mushrooms, onions, garlic, tomatoes, celery, cucumber
White potatoes are a point of debate. Strict paleo guidelines exclude them because of their high glycemic index and the fact that they weren’t widely consumed before agriculture. Many modern paleo practitioners include them, though, arguing that they’re a whole, unprocessed food with legitimate nutritional value. If you’re following a more relaxed version, white potatoes are generally fine.
Fruits
All whole fruits are paleo-friendly, though the diet favors lower-sugar options like berries. If weight loss is a goal, some paleo guidelines suggest limiting fruit to two or three servings per day because of the natural sugar content.
- Berries: blueberries, strawberries, raspberries, blackberries
- Tree fruits: apples, pears, peaches, plums, cherries
- Citrus: oranges, lemons, limes, grapefruit
- Tropical: bananas, mangoes, pineapple, papaya, coconut
- Others: grapes, melon, figs, dates
Dried fruit is allowed in moderation but easy to overeat because the sugar is concentrated. Fruit juice is generally excluded since it strips out the fiber that slows sugar absorption.
Nuts and Seeds
Nuts and seeds are a staple snack and cooking ingredient on the paleo diet. They provide healthy fats, protein, and minerals. However, they’re calorie-dense, so portion control matters if you’re eating paleo for weight management.
- Nuts: almonds, walnuts, macadamia nuts, pecans, pistachios, Brazil nuts, hazelnuts, cashews
- Seeds: pumpkin seeds, sunflower seeds, flaxseeds, chia seeds, hemp seeds, sesame seeds
Peanuts are not included. Despite the name, peanuts are legumes, not true nuts, and legumes fall outside the paleo framework. Nut butters are fine as long as the only ingredient is the nut itself, with no added sugar, hydrogenated oils, or stabilizers. Almond butter and cashew butter are the most common paleo pantry staples.
Fats and Oils
The paleo diet embraces dietary fat but draws a sharp line between fat sources. Naturally occurring fats from animals and certain plants are in. Industrially processed seed oils are out.
- Approved: extra virgin olive oil, coconut oil, avocado oil, ghee (clarified butter), lard, tallow, walnut oil, macadamia oil
- Excluded: canola oil, soybean oil, corn oil, sunflower oil, safflower oil, cottonseed oil, margarine, vegetable shortening
Ghee gets a pass even though regular butter doesn’t because the clarification process removes the milk proteins (casein and whey) that make dairy problematic in the paleo framework. Avocados themselves are also a major fat source in paleo cooking and often used as a replacement for cheese or sour cream.
What the Paleo Diet Excludes
The excluded foods fall into a few broad categories, each with a specific rationale.
Grains
All grains are off limits: wheat, rice, oats, barley, corn, rye, quinoa, millet, and anything made from them. That means no bread, pasta, cereal, tortillas, or baked goods made from grain flour. The reasoning is that grains contain compounds like gluten and phytic acid that can irritate the gut and interfere with nutrient absorption. Grain-free alternatives like almond flour, coconut flour, and cassava flour are commonly used as substitutes.
Legumes
Beans, lentils, chickpeas, soybeans, and peanuts are excluded. Like grains, legumes contain lectins and phytic acid. This is one of the more debated exclusions since many traditional diets around the world rely heavily on legumes as a protein source, and research links regular legume consumption to lower rates of heart disease.
Dairy
Milk, cheese, yogurt, ice cream, and butter are excluded in strict paleo. The argument is that dairy consumption only became possible after animal domestication, making it a relatively recent addition to the human diet. Many people following a modified paleo approach add back grass-fed butter, ghee, or fermented dairy like kefir, especially if they tolerate lactose well.
Refined Sugar and Artificial Sweeteners
White sugar, high-fructose corn syrup, agave, and all artificial sweeteners are excluded. Small amounts of natural sweeteners like raw honey and maple syrup are generally considered acceptable, though they’re still sugar and best used sparingly.
Processed Foods
Anything with a long ingredient list, preservatives, colorings, or additives you wouldn’t find in nature doesn’t fit paleo guidelines. This covers most packaged snacks, frozen meals, fast food, and soft drinks.
Beverages
Water is the primary drink. Black coffee and tea are widely accepted in the paleo community, even though they’re technically not Paleolithic. Herbal teas, sparkling water, and kombucha (without added sugar) are also common choices. Alcohol is generally discouraged, though some paleo followers allow occasional red wine or spirits like tequila that don’t contain grain-based ingredients.
What’s definitively out: soda, fruit juice, beer (it’s grain-based), and any drink with added sugar or artificial sweeteners. Milk alternatives like almond milk and coconut milk are fine as long as they don’t contain carrageenan or added sugars.
A Practical Day of Paleo Eating
Putting the food list into context, a typical day might look like this: eggs scrambled in coconut oil with sautéed spinach and avocado for breakfast. A large salad with grilled chicken, mixed greens, cherry tomatoes, cucumbers, olive oil, and lemon juice for lunch. Grilled salmon with roasted sweet potatoes and steamed broccoli for dinner. Snacks could include a handful of almonds, an apple with almond butter, or some beef jerky without added sugar.
The biggest adjustment for most people is replacing grains. Cauliflower rice stands in for regular rice, spiralized zucchini replaces pasta, and lettuce wraps take the place of tortillas or sandwich bread. Sweet potatoes and plantains become the primary starch sources. After a few weeks, most people find these swaps become second nature, and the overall pattern of eating whole, unprocessed foods is straightforward to maintain long-term.