For several months, I have been taking 1 gram per day of d-ribose in the hope of improving my energy level and resolving some of my fatigue. Disappointingly, I had mild to no result at 1 gram per day.

Recently, mrsD posted a link to a fibromyalgia site that recommended 15 g per day of d-ribose ( http://www.fibroandfatigue.com/the-a...-d-ribose.html ). I was prepared to take 15g, but I found noticeable improvement, for the moment, with 10 g. This is a small miracle for me, since fatigue has prevented me from doing much of anything at all. The effect of the larger dose was immediate and I now have the energy to get through the day, go to work and exercise. Let's hope things continue along this line.

N.B. I found a note on webmd.com that recommended d-ribose doses as high as 60 g per day.