The present invention relates to a palatable, free-flowing powdered composition derived from
Abelmoschus esculentus for enhancing endurance. The composition comprises polysaccharides (5-50%) including rhamnogalacturonans and arabinogalactans;
flavonoid glycosides (2-10%) including
quercetin 3-O-gentiobioside and isoquercitrin (Okraenduroside); and total carbohydrates (30-70%), along with optional excipients for stability and
bioavailability. The composition, when administered to a subject in an appropriate
dose, improves running endurance, enhances swimming endurance, improves rate of perceived
exertion (RPE), ameliorates severity of fatigue, improves fatigue
score, increases peak power, and enhances endurance and
muscle performance. The invention also discloses a method of preparation involving aqueous-alcoholic extraction, concentration, and purification to obtain a water-soluble
powder. The composition can be formulated into capsules, tablets, powders, and beverages and administered orally at a
dose of 100-2000 mg / day. Animal and human studies confirm the
efficacy of the composition for enhancing endurance, making it suitable for the
nutraceutical,
sports nutrition, and pharmaceutical industries.