Male Infertility
Supplements studied for male infertility.
Overview
L-Carnitine and Acetyl-L-Carnitine have medium-strength evidence from 41 combined studies for improving sperm quality, including count, movement, and shape over several months, though effects on pregnancy rates remain uncertain. Selenium may modestly improve sperm numbers and movement but not shape, and its role in combination products is unclear.
Vitamin B9 (Folate) shows mixed results across small studies, with some suggesting increased sperm count but larger trials finding no improvement. Alpha-Lipoic Acid may slightly improve sperm movement and shape without clear pregnancy benefit. The heatmap and evidence reviews below provide a fuller comparison.
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Relevant supplements heatmap
Relevant supplements sorted by DEX Score.
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SupplementDEX Database
11 supplements for and rated at least stars. All purchase bands. No minimum star filter.
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Visual summaries of supplement evidence ranked by condition.
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