Avocados and apple cider vinegar have potassium, or you can find keto electrolyte powder on Amazon. I agree with this poster, keto +intermittent fasting worked best for me, especially because I'm not a purist so if I cave and eat too many carbs I can just fast longer, or vice versa and want to break a fast early I can do so with a keto meal like an egg. Something worth investigating for yourself is the blood type diet, some people do better on carnivore diets than others.