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2018 meta-analysis: Three RCTs examining 13 g/day L-carnitine or ALCAR for 26 months in 201 men aged 2040 with infertility found supplemental carnitine improved sperm motility by 7.84% and morphology by 4.91% but did NOT affect sperm concentration [3][46]
GobyMeds says it offers additional support, including nutrition guidance, fitness coaching, mental health support, and ongoing provider check-ins
Advanced versions also include tranexamic acid for additional melanin suppression
But you should investigate
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