Sugar Content in Wines

[Kazual2]

Hi everyone, I have a question. I would like to know if the sweeter reds like say the jewish wines, namely Manishewitz that I am back into for some strange reason...well do these sweeter wines have a higher sugar level than say the cabernet sauvigs??? And if so, will the higher sugar content affect my blood glucose levels as I would not like to develop a blood sugar problem. Please advise, as I am now having 2 glasses of the manishewitz concord grape wine every day now. Thanks for your info in advance. This is very important to me. Kaz