This Jarrow product has saved my life twice now. First time I did a distilled water cleanse and drank too much water for two days and washed my bacteria colony out of my gut. The result was hunger-nausea. Someone on the internet came up with that description and I think it's perfect. I think I washed the main bacteria out because h-p is shaped like a coil and may be able to dig into the the linings of the intestine and hold on (imho). That might be the case, since I think they cause ulcers also. This time, I must have had a build up of toxins, since I got the flu for 2 days (only 2 days thanks to taking 20,000 mg ascorbic acid each day) . I drink distilled water, so the toxins are not from there, maybe from food, I don't know, but anyway, I read that h-p can take over if you have a temp above 98.6 for a few days (don't know is that is true or not, but it's what happened in my case). I patiently waited for my shipment, which came 2 days early and two days after I got on the gum, and a probiotic with the correct types, things got better. I took 2 morn and 2 late eve. 2nd wk, 2,2,2. You can't stop taking it, if it's not completely corrected, so you can't just stop when you are feeling good again. I don't know what the correct period is, but I will sure take it for a month at minimum. Also If you need to make things feel better, while you are correcting h-p takeover, us DGL (liq root.). I will never again be without some gum in my cabinet again, since I read that once you have h-p, you are more prone to have it again. I worry that children who complain of stomach problems might have h-p and it goes uncorrected, since they can't describe what's going on. Just be aware. Blessings.