D-Ribose
D-ribose is a naturally occurring simple sugar and a building block of RNA and ATP. It has been studied for symptoms of fibromyalgia and chronic fatigue syndrome.
Does it improve energy?
An uncontrolled pilot involving 41 patients reported improvements in energy, sleep and well-being with 5 g three times daily. Without a comparison group, the improvements cannot be confidently attributed to D-ribose. 1
What about mental fatigue?
A blinded crossover trial in 17 healthy volunteers found no effect with 2 g daily for eight days. The authors cautioned that the dose may have been too low; the result concerns this regimen, not every possible dose. 2
Effects by health goal
Open an effect to see the studies behind its rating. Bars show the size of the effect; the letter grades the evidence.
Energy2 effects
No study is linked to this rating.
No study is linked to this rating.
Fitness1 effect
No study is linked to this rating.
Stress & Mood1 effect
No study is linked to this rating.
Cognition1 effect
No study is linked to this rating.