grassisgreener- i don't know what type of pnemonia it is, but the doc said that there is a chance of getting a pnemonia when using grapefruit seed extract and that the oil that is in the extract can be a risk to the lungs. he does not recommend allowing oil to enter the lungs. i asked him about it because i saw it on this post and i thought it was interesting and he was against it. i just wanted to mention it so other ppl interested in it can look into it because on the one hand, natural things can be miraculous, like hypertonic saline. but on the other hand, you have to be careful with things that are not regulated. some natural things are more powerful than chemicals and natural does not always mean safe. so that's all the info i have.