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This experimental study investigates the effect of dietary Spirulina supplementation on male reproductive health in albino rats. Thirty male rats were divided into three groups: control, low-dose Spirulina, and high-dose Spirulina. For 30 days, the treatment groups were given Spirulina with their food, while the control group was given standard chow. At the termination of supplementation, several reproductive parameters were evaluated such as sperm concentration, motility, morphology, serum testosterone levels, testicular histopathology, and markers of oxidative stress (MDA, SOD, catalase, and GSH). The findings showed remarkably improved sperm quality and testosterone status in Spirulina-treated groups with increased activity of antioxidant enzymes and decreased lipid peroxidation. Histopathological study also showed improved testicular integrity and spermatogenesis. These results indicate that Spirulina exerts a protective and augmenting influence on male fertility, possibly as a result of its strong antioxidant activity. The research highlights the potential of Spirulina as a natural, safe, and inexpensive supplement for reproductive health augmentation, but points to the necessity of further research in models to validate its therapeutic uses.