The quick version: The paleo diet is built on whole foods our ancestors could hunt or gather (meat, fish, eggs, vegetables, fruit, nuts, and seeds) while leaving out grains, legumes, dairy, and refined sugar. The goal is to eat mostly unprocessed food the human body is well adapted to.

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If you’re new to paleo, this is your starting point. Below you’ll find what the paleo diet actually is, exactly what to eat and what to avoid, how to begin without overwhelm, and quick answers to the most common “is this food paleo?” questions — plus links to our deeper guides when you’re ready to go further.

What is the paleo diet?

Paleo (short for “Paleolithic”) is an eating pattern based on the foods available to humans before agriculture. The core idea is simple: favor whole, minimally processed foods our bodies evolved to handle, and skip the grains, legumes, dairy, and refined products that became staples only after farming began. In everyday terms, most people experience paleo as “real food, no packaged junk, no bread or pasta.” People choose it for steadier energy, better digestion, reduced inflammation, and weight management.

What you eat on paleo

  • Quality protein: meat, poultry, fish, seafood, and eggs
  • Vegetables: leafy greens, cruciferous veg, and colorful vegetables of all kinds
  • Fruit: berries, apples, bananas, and other whole fruit (lower-sugar fruits if you’re watching carbs)
  • Healthy fats: avocado, olive oil, coconut, and animal fats
  • Nuts and seeds: almonds, walnuts, macadamias, pumpkin seeds (not peanuts — those are legumes)
  • Starchy tubers: sweet potatoes and other roots, especially if you’re active

What paleo leaves out

  • Grains: wheat, rice, oats, corn, and anything made from them (bread, pasta, cereal)
  • Legumes: beans, lentils, soy, peanuts, and chickpeas
  • Dairy: milk, cheese, and yogurt (a flexible “primal” approach allows some)
  • Refined sugar and processed food: sodas, candy, and most packaged snacks
  • Industrial seed oils: soybean, corn, and similar refined oils

How to start paleo in 5 steps

  1. Clear the obvious non-paleo staples — bread, pasta, cereal, and sugary snacks.
  2. Build each meal around protein plus vegetables and a healthy fat.
  3. Find your swaps — cauliflower rice for rice, lettuce wraps for bread, almond butter for peanut butter.
  4. Plan a few default meals so you’re never stuck deciding when hungry.
  5. Give it 30 days before judging results, then reintroduce foods deliberately to see how you feel.

Is it paleo? Quick food answers

One of the most common questions for beginners is whether a specific food fits. Our growing food-by-food guide gives you the verdict, the reason, and paleo-friendly swaps:

Explore our complete paleo guides

This is general nutrition information, not medical advice. If you have a medical condition or take medication, talk with a doctor or registered dietitian before making big dietary changes.

  • AIP Diet Guide: The Autoimmune Protocol Food List, Phases and What the Studies Show – A plain guide to the AIP diet: what the autoimmune protocol removes beyond paleo, how reintroduction works, the three studies and a USDA-checked AIP day.
  • Paleo Diet Cholesterol Guide: What the Trials Show and Why Your Fat Choices Decide the Result – Does the paleo diet lower or raise cholesterol? Six studies summarized in mg/dL, a USDA saturated-fat table for paleo staples and two sample days compared.
  • Paleo Flu: Why the First Weeks Can Feel Rough, How Long It Lasts and the Sodium Math Behind It – Paleo flu explained: common symptoms, how long they last, why cutting processed food can drop sodium by 2,000+ mg a day, and when to see a doctor.
  • Is Alcohol Paleo? Wine, Tequila, Beer and Cider Ranked, With Carbs and Calories per Drink – Is alcohol paleo? Strict paleo says no. Here’s how wine, tequila, cider, spirits and beer rank as gray areas, with USDA carbs and calories per standard drink.
  • Paleo Diet Protein: How Much You Need Per Day, the Best Sources and What 30 Grams Costs – How much protein to eat on the paleo diet: grams per day by body weight, a USDA protein table for paleo foods, a 94 g sample day and BLS cost per 30 g.
  • Organ Meats on the Paleo Diet: Liver, Heart and Kidney by the Numbers, Plus How Much Is Too Much – Organ meats on the paleo diet: USDA nutrition for liver, heart, kidney and tongue, the vitamin A and copper limits for liver, and 3 recipes with real amounts.


    • Research cited in this guide

    We checked this guide against the nutrition and health sources below. They are worth reading for the underlying detail.