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Research by Rengaraj and Hong have demonstrated how a deficiency in vitamin E may lead to abnormalities in spermatogenesis, and although supplement doses have not proven any significant increases in quality sperm production, they still show positive effects on testis health and sperm function [88]

They have supplemented this formulation to male participants of a clinical trial of this drug for 2 to 5 months at a daily dose of 2 capsules before their semen has taken for IVF and intra-cytoplasmic sperm injection (ICSI)

Bartl I, Ondruov M, Kuma M, Jackuliak P, Gaov A, Kyselovi J, et al

doi: 10.1111/j.2047-2927.2013.00107.x