Since I developed polymyalgia 18 months ago I have had a tendency to develop UTI's frequently. I am 77 and for most of my life rarely if ever had a UTI. However last year having had to take antibiotics regularly I looked for alternative treatment and started taking Mannose. This certainly helped the situation but didn't cure until I went on to the dose suggested by the manufacturer of 2/3 heaped teaspoons a day for 3 months which is expensive but works! As I am a regular sufferer of UTIs I still get infections occasionally especially when getting cold or stressed However I can stop this in it's tracks with Mannose. This has just been confirmed by my GP as I was diagnosed with UTI last week and it is cleared today. Since my urinary system has obviously got quite sore with so many infections I am finding that my diet has to be careful ie no tea, coffee or alcohol or acidic or spicy food but this may be specific to me as my digestive system is very weak and I have a lot of food intolerances. I would certainly recommend Mannose for UTI's although the cost may be prohibitive to some people. I am hoping that as I become stronger that I can get the dose of Mannose down to the minimum of 1 heaped teaspoon a day.