When I saw Snopes jump on the B12 (via Marmite) cures Premature Ejaculation story, I was curious. I wondered if Snopes was calling false based on a story element I hadn’t noticed.
Basically, the vitamin B12/Marmite curing premature ejaculation story derives from a study of 109 subjects, 56 with PE Premature Ejaculation), and 53 controls, that was published on September 29, 2016, in the journal Andrologica.
For the study, the researchers evaluated the 56 PE subjects using the premature ejaculation diagnostic tool (PEDT), International Index of Erectile Function (IIEF) and Beck Depression Inventory (BDI). Also, the researchers analyzed the subjects’ vitamin 12 levels.
It turned out that the PE subjects had lower vitamin B12 levels than the 53 controls. There was in fact a difference of more than 50 points between the lowest vitamin B12 level among subjects with PE which was 213.14 and the highest level of 265.89 among subjects in the study without PE. For the purposes of the study, PE was defined as ejaculating in less than two minutes.
The study links lower levels of vitamin B12 with PE. It does not make the logical leap, which though logical would be scientifically suspect, that more vitamin B12 may well reduce premature ejaculation. I say, “may well” because it is well known that vitamin B12 is essential to nerve health and nerve function.
What surprises me about the study is that the levels of all subjects seem very low. “Healthy” B12 levels in some countries, but not the United States or Great Britain, are based on the fact that below 500 to 550 early signs of dementia can be seen.
What is a Health Vitamin B12 Level? Read more.