D-Ribose Powder



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*(Documents above may vary from batch received. Click here to request batch-specific documents)

Supplement Facts & Directions

Supplement Facts

Serving Size: 5 grams
Servings Per Container: Varies
Amount Per Serving % Daily Value*
Calories 20
Total Carbohydrates 5g 2%
      Sugars 5g
D-Ribose Powder 5g

* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value Not Established
‡ These supplement facts may vary from the product you receive. Please call for exact numbers.

Other Ingredients: None


Free of: Soy, Dairy, Yeast, Gluten & Additives.

Directions: As a dietary supplement, take 5 grams (1 tsp) three times daily with meals or as directed by a physician.

Warning: If you are pregnant, nursing, taking any medications, or have any medical conditions consult your physician before use. DO NOT take if you have diabetes or hypoglycemia. Keep out of reach of children.

Product Details

What is D-Ribose?

D-ribose is an aldopentose sugar with a five-carbon ring structure. It is essential for gene expression and regulation and to code and decode genes. It forms the structural backbone of RNA and DNA. The body needs d-ribose to synthesize several adenine nucleotides, including adenosine monophosphate (AMP), adenosine triphosphate (ATP), and adenosine diphosphate (ADP). All three molecules are critical for energy storage and transfer. However, ATP has the greatest molecular unit of currency when it comes to energy. It stores and releases energy to cells to catalyze several bodily processes, including nerve impulse propagation and muscle contractions. ATP is also an essential component to synthesize RNA.

Potential D-Ribose Benefits

D-Ribose for Energy

D-Ribose may be able to reduce fatigue due to its integral role in synthesizing ATP. One study noted that chronically fatigued participants taking d-ribose supplements experienced significant improvements in their energy levels. The same study reported notable improvements in participants’ sleep, mental clarity, and mood. D-Ribose is also a limiting factor to synthesize ATP. For example, certain pathological conditions and intense exercise deplete ATP to meet the body’s demand for energy. However, the availability of d-ribose limits how much ATP the body can synthesize. By replenishing d-ribose stores, the body can produce more ATP to boost energy.

D-Ribose and Heart Health

D-ribose supplements may support heart health by boosting energy availability in heart muscle, improving heart metabolism, and increasing the heart’s ability to tolerate exercise. Several studies have noted that d-ribose helps improve heart function and quality of life for individuals with heart conditions.

D-Ribose and Pain

D-Ribose may improve pain symptoms by improving energy metabolism. A pilot study reported that d-ribose supplements improved the intensity of the participants’ subjective pain levels. Another all-female study noted that d-ribose improved the participants’ pain levels. Researchers believe d-ribose supplements help attenuate pain by altering how muscles metabolize adenine nucleotides.

D-Ribose and Exercise Performance

D-ribose may enhance exercise performance by replenishing ATP for muscle energy. One study found that d-ribose outperformed a placebo sugar when restoring ATP after intense exercise. Researchers hypothesized that increased ATP synthesis may reduce soreness and exercise recovery. Another study reported that improvements in exercise performance are particularly notable in individuals with lower fitness levels. Participants with a lower VO2 max were able to sustain their exercise performance with a reduced perceived rate of exertion.

Potential D-Ribose Side Effects

Most individuals tolerate d-ribose supplements without experiencing side effects. Some individuals may experience mild gastrointestinal side effects, such as nausea, upset stomach, or diarrhea. Individuals with diabetes should not take d-ribose supplements without consulting their physician, as it may lower blood sugar. Individuals with upcoming surgical procedures should abstain from taking d-ribose supplements for at least two weeks before their surgery to avoid problems with maintaining blood sugar.


Tested by Accredited 3rd Party Labs

PureBulk's supplements are tested by accredited third party labs in the USA to ensure their identity, purity and potency. To receive a copy of these test results or any other PureBulk supplement please fill out the COA request form found here.

*NOTE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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