Dr. Becker's BioNutrients D-Ribose - D-Ribose is a naturally occurring carbohydrate used to produce energy. It provides nutritional support for the cardiovascular and musculoskeletal systems. It looks like refined sugar and has a very pleasant taste. Persons with diabetes should take no more than 3 scoops daily. Each scoop provides 2.2 grams of D-Ribose.