Squidge, this is a good place to start (list from Jason Fung’s website)
• Meat: Any type: Beef, pork, lamb, game, poultry, etc. Feel free to eat the fat on the meat as well as the skin on the chicken. If possible try to choose organic or grass-fed meats. .
• Fish and seafood: All kinds: Fatty fish such as salmon, mackerel, sardines or herring are great. Avoid breading.
• Eggs: All kinds: Boiled, fried, scrambled, omelets, etc. Preferably organic eggs.
• Natural fat, high-fat sauces: Using butter and cream for cooking can make your food taste better and make you feel more satisfied. Try a Béarnaise or Hollandaise sauce, check the ingredients or make it yourself. Coconut fat or olive oil are also good options
• Vegetables that grow above ground: Cauliflower, broccoli, cabbage and Brussels sprouts, kale, collards, bok choy, spinach, asparagus, zucchini, eggplant, olives, spinach, mushrooms, cucumber, lettuce, avocado, onions, peppers, tomatoes etc.
• Dairy products: Always select full-fat options like real butter, cream (40% fat), sour cream, Greek/Turkish yogurt and high-fat cheeses. Be careful with regular milk, reduced fat and skim milk as they contain a lot of milk sugar. Avoid flavored, sugary and low-fat products.
• Nuts: Great for a treat (in moderation) instead of popcorn, candy or chips
• Berries: Okay in moderation, if you are not super strict or sensitive. • Great with whipped cream.