My dad has severe copd due to smoking. He has quit a few years ago but the damage is done. He is on 24/7 supplemental oxygen. He also is on a higher amount of blood pressure medication and is getting ready to go on blood thinners. Would keto be appropriate for him? His doctors tell him stay away from salt (which we all know isn’t the best advice) just wondering if he may benefit from it. He is about 20lbs overweight so was hoping it may improve that as well. My biggest hurdle would be the salt intake cause he has been told how wrong it is.