Yes, research indicates that L carnitine supplementation can help improve sperm count (oligospermia) in addition to motility, particularly when levels are deficient
This makes it crucial for health, but also important for supporting recovery from intense training and other stressors that athletes face
Your daily brain workout: Anyone Who Can Actually Complete This 25-Word Mega Word Chain Deserves A Medal And Bragging Rights Forever Also in Health: "People Are Predicting The "Inevitable Outcomes" Of GLP-1s Over The Next 20 Years"

(2) Glutathione also plays additional key roles across many areas of human health: (3) Neutralizing reactive oxygen species (ROS), including harmful age-accelerating free radicals Serving as a cofactor for antioxidant enzymes Regenerating other antioxidants ( vitamin C and vitamin E) to fight free radicals again Helping to remove toxins and heavy metals from cells and the brain Supporting mitochondrial function and maintaining mitochondrial DNA for healthy energy As for its role in the immune system, aside from protecting cells from free radical damage, glutathione also protects human health in two ways: (4) Supports proper function of the T-cell lymphocytes to enable frontline soldiers of the immune system to increase in numbers Stimulates production and activation of natural killer (NK) cells Its also been shown to have a pivotal role in establishing innate immune responses, possibly acting as a signaling molecule with a mechanism different from simply scavenging reactive oxygen species

Insufficient Evidence for: Age-related fatigue
Market availability could come within 12-18 months