I have read alot on this forum about Kombucha. I saw some at the health food store and decided to try some. The bottle says it is cultured for 30 days. There are about 10 flavors and the Sugar content varies from flavor to flavor. The citrus-green& cosmic cranberry have the least amount( 2grams) per serving. I bought the 3 flavors above and am drinking them. It tastes kinda sour....vinegarish with alittle fizziness to it...not bad. I was just drinking organic green tea unsweetned, so I will try this stuff for awhile. They are expensive...about $3.50 each, so I will have 3 or 4 a week. It is better than plain water all the time.......