Natural astaxanthin is known as one of nature’s most beneficial antioxidant ingredients. Numerous clinical studies conducted in humans have assessed astaxanthin’s safety, bioavailability, and clinical aspects relevant to oxidative stress, the inflammatory process, and the mitochondrial function. Research shows that astaxanthin may be effective in helping to maintain muscle health as well as supporting the body in its fight against prediabetic conditions. The number of studies exploring astaxanthin’s potential benefits has greatly increased during the last decade, to include research areas such as unhealthy metabolic conditions, cardiovascular, and cognitive functions.