ACV will do a lot of good to your body. In particular if you have problems related to the lungs, if you drink some daily, you might see an improvement after a few months.
ACV improves your overall health. But has a direct impact on the lung. I consume about 3 table spoons per day. It really does wonder.
If you do decide to try it, the taste is absolutely awfull. You'll probably hate yourself for drinking it. But if you do decide to give it a go, make sure to buy it in a non-transparent container. Light, just like for milk, do damages to the product. In case you want to know, I use this one;
It is certified organic & Kosher.
I buy it in a gallon container. I also know that Heinz is/was manufacturing ACV, but last time I checked some years ago, it came in a transparent container.
Oh, one more thing, I don't use a table spoon to take it, but a small medecine cup. I take it all in one shoot, a lot less painful this way