I wouldn't want to be without this product! I've been taking it for a few years now and to be honest I can't remember what prompted me to start, but one very noticable effect was that my grey hair went back to its original colour! I can only imagine all the other benefits if it does that! Seriously, I have good energy levels, my hay fever has gone, I very rarely get colds and when I do I up the dose and it goes quickly. Because of my lifestyle, I tend most days to just take it in the morning. I think I had in my head that you should take it on an empty stomach, which is a challenge, but I think that may be wrong so I'm going to try for three times a day, I just have to remember to take it with me when I'm out!