There’s an amazingly simple way for western men to raise their testosterone level. All they have to do is take a supplement containing extra vitamin D. At least, this is what we deduce from an epidemiological study done at the Medical University Graz in Austria, which will soon be published in Clinical Endocrinology.
Vitamin D is actually a hormone – one that regulates three percent of our genes. Among those genes are a few that are responsible for the production of testosterone in the Leydig cells. So vitamin D is an important vitamin, certainly once you realise that an overwhelming majority of the western population has too little vitamin D in their blood.
This is because our food contains too little vitamin D, so we have to rely mainly on the vitamin D that our body makes. When exposed to sunlight our skin cells convert cholesterol into vitamin D. But we get too little sunlight and are therefore unable to make enough vitamin D.
So does that mean that most men in the West therefore make too little testosterone?
This is the question that the Austrians set out to answer. So they examined the blood of 2300 men whose average age was just over sixty. Only eleven percent of them had sufficient vitamin D in their blood. And indeed: the more vitamin D the men had in their blood, the higher their testosterone levels and their concentration of free testosterone [FAI].
High vitamin D level = high testosterone level
Vitamin D is actually a hormone – one that regulates three percent of our genes. Among those genes are a few that are responsible for the production of testosterone in the Leydig cells. So vitamin D is an important vitamin, certainly once you realise that an overwhelming majority of the western population has too little vitamin D in their blood.
This is because our food contains too little vitamin D, so we have to rely mainly on the vitamin D that our body makes. When exposed to sunlight our skin cells convert cholesterol into vitamin D. But we get too little sunlight and are therefore unable to make enough vitamin D.
So does that mean that most men in the West therefore make too little testosterone?
This is the question that the Austrians set out to answer. So they examined the blood of 2300 men whose average age was just over sixty. Only eleven percent of them had sufficient vitamin D in their blood. And indeed: the more vitamin D the men had in their blood, the higher their testosterone levels and their concentration of free testosterone [FAI].
High vitamin D level = high testosterone level