According to Medical News Today, the core of the AIP diet should be whole foods that are free of additives and added sugar, including lean meats, liver, seafood abundant in omega-3 fatty acids, all vegetables (with the exception of nightshades), and small amounts of fruit.
Fermented foods such as coconut yogurt, kefir, kimchi, kombucha, and sauerkraut are recommended, per WebMD. Acceptable oils and fats include avocado oil, coconut oil, ghee, olive oil, and lard. Vinegar can still be used to balance oils for salads. In place of wheat flour, arrowroot and coconut flour can be used to make various breads and bread products. Herbs such as ginger, turmeric, basil, thyme, sage, oregano, rosemary, mint, and cinnamon can be used to spice things up.
Permissible beverages include herbal teas and coconut milk; bone broth is also encouraged (via Today’s Dietitian). For dessert, sugar-free gelatin fits in well with the AIP diet (per WebMD).