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Clinical trial data shows nausea in approximately 44 percent of participants, vomiting in about 24 percent, diarrhea in 30 percent, and constipation in 24 percent

However, an elevation of B12 in ones serum can be tied to the MTHFR gene variation , as those with the MTHFR gene variation may be unable to properly use non-methylated B12

The authors called for well-designed human studies

Testosterone then binds to androgen receptors in various tissues, exerting anabolic and androgenic effects