I find myself feeling very bad and blowted when i drink milk, either skim or 3.25%

But when i eat cheese i dont really feel that way, i was wondering i bought some cheese sticks the other day with 0% carbs in them, i guess that since its cheese there is some lactose in it.

The sticks are very good and can be used of a good snack, 5.3 g of protein and 4g of fat, 0g of carbs.

Can cheese be used in the low carb days?

Also my friend bought some pizza last night, today i scrapped off the top and kept only the cheese and bacon, i add eard that on low carb this can be ok?

I dont know if mozzerela cheese is ok havent checked the carb index.