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doi: 10.1016/j.ccell.2020.06.001

10.1016/B978-0-12-814617-0.00008-6 108 ManzoorM

Not directly, but increased GH/IGF-1 can indirectly support testosterone levels

Researchers have provided evidence that an arginine-deficient diet can decrease a mans sperm count, and supplementing the diet with arginine can increase sperm count.20 The theory behind this is that arginine is converted to NO, which can relax the blood vessels in the smooth muscles of the penis

Number of times animals crossed within a 7.5-way ANOVA showed significant differences between groups
