==Special Precautions of Kefir==
* According to the University of California Berkeley "Wellness Letter," certain probiotics strains, such as Enterococci, cause problems if you have a weakened immune system or certain bowel problems. The newsletter adds that you should never give probiotics to infants. Also, a 2001 study of kefir in rats found that while kefir treated diarrhea and stimulated immune function in younger rats, it provided neither of those benefits in older rats.
==Benefits and uses of Kefir are==
* One cup of kefir is a source of protein, with 8 to 11 g per cup.