Dan
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].
http://www.ergo-log.com/vitamindtestosterone.html
Excerpt:
High vitamin D level = high testosterone level
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?
http://www.raise-your-testosterone.com/testosterone-boosting-supplements-1.html
EXCERPT:
You may not think of vitamin D among testosterone boosting supplements. In fact, the direct effects of vitamin D levels on testosterone have not been studied in the literature. But as we have discussed elsewhere, the best way to raise your testosterone is to keep your body healthy and to train. If you have any of the following symptoms, you may be interested in reading further:
1. Frequent sore muscles or muscle pain
2. Respriatory infections
3. Acne
4. Stress fractures
These are all symptoms of vitamin D deficiency. And they all get in the way of your training and increased testosterone. In fact, athletes are extremely suceptible to vitamin D deficiency.
In my experience, I found that 2000 IU per day of vitamin D3 made a surprisingly noticeable impact on my muscle soreness.
As a side note, there is something else about vitamin D that you should know: vitamin D levels have an enormous and underappreciated impact on your risk for cancer and other diseases. Current recommended intake values are based on out-of-date science.I strongly recommend anyone who is not out in the sun for their job, and especially people of color, take at least 1000 IU vitamin D3 supplements per day. We are not talking about the mega-max world of testosterone boosting here, but rather simple things that are easily overlooked in day to day life. Getting back to the principles section, you mostly just need to keep your body healthy. This is an easy way to do that.
http://www.livestrong.com/article/298565-how-much-vitamin-d3-is-safe-to-take-to-prevent-toxicity/
EXCERPT:
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