12 mg Astaxanthin for 28 Days: Muscle Damage and Burnout in Fighters
A new randomized trial put 12 mg of daily astaxanthin to the test in young male taekwondo athletes. After 28 days, the supplement group showed a significantly different creatine kinase trajectory than placebo, plus higher SOD and exploratory signs of lower MDA and less emotional and physical exhaustion. But the burnout findings were exploratory, with no group × time interaction on any subscale. The trial was small and measured biomarkers, not performance. Here's what the data show, what they don't, and who might want to pay attention.
Blueberry Smoothie Helped Sore Legs Regain Strength Faster
Ten women, 300 brutal eccentric quad contractions, and one blueberry smoothie. In this randomized crossover trial, the berry drink sped up the recovery of peak isometric strength over 60 hours (p = 0.047), while a placebo matched for antioxidant capacity did not. That means the benefit probably wasn't just about antioxidants. Only one outcome reached significance and the sample was tiny, so the evidence is promising rather than conclusive. Here is how the study worked, what it found, and how to use it around your hardest leg days.
Spirulina Helped Runners Last 32% Longer—Here's the Catch
Runners who took spirulina for four weeks lasted about 32% longer in an all-out effort after a brutal two-hour run. The same study found a 10.9% jump in fat oxidation and higher levels of the antioxidant glutathione. But before you stock up, there's a catch: only nine men took part, and the real-world gain was roughly 39 seconds. Here's what the research shows, why it might work, and how to try it safely.
Tart Cherry Juice Trick: Faster Strength Recovery, Lower IL-6
Marathoners and lifters swear by tart cherry juice for recovery, and this placebo-controlled study put it to the test. In 20 runners, isometric strength recovered significantly faster (P=0.024), while IL-6, CRP and uric acid all dropped and antioxidant status was about 10% higher. But creatine kinase, LDH and muscle soreness were not significantly different, so the picture is more nuanced than the hype. Here's what the study did, what it found, and who might actually benefit.
Astaxanthin for 4 Days Boosted Cycling Time-to-Exhaustion From 72 to 85 Minutes in a Small Trial
Four days of astaxanthin at 28 mg/day lengthened cycling time to exhaustion from about 72 to 85 minutes in a small randomized trial, a gain of roughly 18%. The same protocol blunted rises in muscle damage markers (CK and LDH) and lipid peroxidation (MDA) after a hard ride at 75% VO2max. Inflammation markers and fuel use did not change, so the mechanism is still unclear. The dose is also well above what many softgels provide, and the study had just ten young men. Here is what the numbers show and where the evidence stops.