My husband with CHF has been taking this for years and he swears by it’s effectiveness! Can’t live without this D-ribose tabs!

best quality we like ingredient campule is too big size best magnesium grade package & benefit is fit healp to joint , muscle & sleep have mineral & assistant hormone taste is ok

i cant comment on the effectiveness of the product as i have not taken it for very long, but the tablets are quite large and you need to take quite a few which may be off putting for some people.

Does what it promises. I will keep buying it for the household.

Good supplement. I take nearly 1 year . This supplement contain 5 carbon sugar and support for all cellular energy, and also support heart and muscle

Yes, it somehow works for CFS or Fibromyalgia - but as a monosaccharide, D-Ribose may cause a variety of chronic complications, such as nervous system-related diseases and diabetic nephropathy (PMC8005739).

Improves energy levels and day to day functioning

Good product quality , size and price

high quality for reasonable price

I refused to take a high powered drug about a 1 1/2 yrs. ago that had a risk of causing a worse problem when the diagnosis was AFIB by a cardiologist. It calms my heart and only takes 2 or 3 tablets a day to do it. My regular doctor is open to integrated medicine and agreed that the recommended drug was a risk in itself, so he suggested D-Ribose -- Bless him! I know it works, because I ran out once and my heart got all excited! I always keep one bottle ahead now so I don't run out again. I also take a baby aspirin every day. I tried Doctor's Best D-Ribose when iHerb had a free sample once...it was awful. Life Extension works so much better. Don't drop your meds because of this review, but its sure worth a talk to to doctor about it. This is great stuff and not just for athletes.