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Using co-factors for methylation pathways such as vitamin B12, magnesium and biotin, to ensure balanced neurotransmitter metabolism and homocysteine clearance
256 Most studies suggest pregnancy is unlikely if the total motile sperm count is under 5 million, and some research indicates those with total motile sperm counts of 1030 million may have the best chance of successful intrauterine insemination
In the United States, 3-6% of the population are vitamin B12 deficient and 15-20% have marginally depleted levels
2022 Aug;52(8):828-839
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