Klean Endurance contains pure D-Ribose to support the natural process by which a body produces adenosine triphosphate (ATP). The naturally-occurring pentose sugar supports cardiovascular health, energy production and mitochondrial function. Available in a great-tasting chewable tablet, Klean Endurance offers a clinically proven method to help restore energy during exercise.‡
 

As a dietary supplement, adults take 1 chewable tablet 1-3 times daily with food, or as directed by a trainer, coach, or health professional.

Serving Size: 1 Chewable Tablet

Amount Per Serving
Calories ... 10
Total Carbohydrates ... 2g
Total Sugars ... 1.67g
Sugar Alcohol ... 0.5g
D-Ribose ... 1.67g

Other ingredients: Xylitol, microcrystalline cellulose, hydroxypropyl cellulose, silica, natural orange flavor, vegetable stearate, citric acid, mannitol, stearic acid, carnauba wax and natural vanilla flavor.

Gluten-free, Non-GMO