Is d. mannose supplement for urinary health and uti prevention safe/clinically proven effective?

Here are some ...: Theoretically, d-mannose can block UTI-causing bugs to stick to the lining of urinary tract and has been recommended to try for preventing recurrence at the dose of 3/4 - 1 tsp 3 times daily, though not well studied and proven. So, you may try and see if the frequency of recurrence would decrease or not before and after taking it under same lifestyle. But don't let it burn your pocket - money...

Depends . . .: If you ask enough people, eventually you'll get the answer you want to hear. With that said, there's a big leap to take from theory to animal studies to humans. So while many new drugs are expensive, it takes a lot of research to get them approved. Check out http://www.med.nyu.edu/content?ChunkIID=225997 which points this out. Then check out http://www.ncbi.nlm.nih.gov/pubmed/23633128. Maybe!!!!