topicAstaxanthin Sleep Quality Randomized Trial
claimTart cherry juice, rich in melatonin, has been linked to improved sleep duration and quality [,,].
evidence level2
citationShoji Kentaro (2026)
sourceHyperoside-Rich Blueberry Leaf Tea Improves Sleep Continuity in Adults with Poor Sleep: A Two-Week Randomized Double-Blind Controlled Trial
topicAstaxanthin Sleep Quality Randomized Trial
claim15 Given this background, our previous interventional trial served as a pilot study to explore the sleep-improving effects of hyperoside, a flavonoid abundantly found in blueberry leaves [].
evidence level2
citationShoji Kentaro (2026)
sourceHyperoside-Rich Blueberry Leaf Tea Improves Sleep Continuity in Adults with Poor Sleep: A Two-Week Randomized Double-Blind Controlled Trial
topicAstaxanthin Sleep Quality Randomized Trial
claimFollowing fermentation, the leaves were brought to room temperature (25 °C) and dried at 70 °C using a hot-air dryer until the moisture content was reduced to below 5%.
evidence level2
citationShoji Kentaro (2026)
sourceHyperoside-Rich Blueberry Leaf Tea Improves Sleep Continuity in Adults with Poor Sleep: A Two-Week Randomized Double-Blind Controlled Trial
topicAstaxanthin Sleep Quality Randomized Trial
claim1 2 3 4 5 6 Sleep is essential for maintaining overall health and well-being; however, sleep problems remain a major public health concern.
evidence level2
citationShoji Kentaro (2026)
sourceHyperoside-Rich Blueberry Leaf Tea Improves Sleep Continuity in Adults with Poor Sleep: A Two-Week Randomized Double-Blind Controlled Trial
topicAstaxanthin Sleep Quality Randomized Trial
claim1 2 3 6 7 8 9 10 11 13 14 15 17 Astaxanthin is a naturally occurring lipophilic orange carotenoid predominantly found in microalgae, fish, and crustaceans and has been commercially utilized mainly in the feed industry and dietary supplements since it was first isolated from lobster in 1938 (,).
evidence level2
citationZhang Xiu-Chang (2025)
sourceEffects of 4-week astaxanthin supplementation on athletic performance and body composition in young male taekwondo athletes: a randomized, double-blind, placebo-controlled trial
topicAstaxanthin Sleep Quality Randomized Trial
claimAs a potent antioxidant, astaxanthin can act directly on mitochondria to modulate energy metabolism, thereby contributing to improved athletic performance (,).
evidence level2
citationZhang Xiu-Chang (2025)
sourceEffects of 4-week astaxanthin supplementation on athletic performance and body composition in young male taekwondo athletes: a randomized, double-blind, placebo-controlled trial
topicAstaxanthin Sleep Quality Randomized Trial
claimFor example, a 28 day intervention with 4 mg per day improved cycling time trial performance in trained young adults ().
evidence level2
citationZhang Xiu-Chang (2025)
sourceEffects of 4-week astaxanthin supplementation on athletic performance and body composition in young male taekwondo athletes: a randomized, double-blind, placebo-controlled trial
topicAstaxanthin Sleep Quality Randomized Trial
claimAstaxanthin exhibits multiple physiological and therapeutic properties, including anti-inflammatory and antioxidative effects, attenuation of skin aging, and potential benefits for cardiometabolic and neurological disorders (–).
evidence level2
citationZhang Xiu-Chang (2025)
sourceEffects of 4-week astaxanthin supplementation on athletic performance and body composition in young male taekwondo athletes: a randomized, double-blind, placebo-controlled trial