What dairy products should you not eat?
If you are lactose intolerant you shouldn't really eat/drink any dairy products.
If I were you I wouldn't drink the bad milk in the fridge, it'll taste gross. Oh and don't eat that bad, smelly cream cheese, sour cream, or yogurt either!! More or less....don't eat any bad/over due dairy products.
If you are allergic to certain products in dairy products...don't eat/drink those either
Lacto-vegetarians eat dairy, but don't eggs or other animal products. Ovo-vegetarians eat egg products, but don't eat dairy or other animal products. Ovo-lacto vegetarians eat dairy and eggs but nothing else that comes from an animal. Pure vegetarians/vegans eat nothing that comes from an animal, dead or alive.
You cannot eat dairy products, when you're on the Paleo diet. Cheese, all cheeses, are dairy products. A good thing to ask yourself when considering what to eat: could a caveman have eaten this? Cavemen didn't milk animals (except humans-when they nursed on their mothers). So, they didn't eat dairy products.