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Muscular Strength and Vitamin D

Optimizing your vitamin D3 level is one of the most important things you can do to improve your overall health and physical performance.    

Vitamin D3 controls or influences almost every cellular process in the body.  It regulates more than 2,000 of the 30,000 human genes.  It's essential to endocrine function, controlling the action of the adrenal and anabolic hormones, the growth of cells, and the production of enzymes.  It's a powerful immune booster, providing front-line defense against illness and disease.  And if you're an athlete, vitamin D3 is essential for peak, physical performance; it contributes to muscular strength and recovery while controlling physical reaction time, balance, and coordination. 

A few months ago, I shared information on new research from the Journal of Sports Science 
that showed a link between high vitamin D3 levels and improved speed and agility.  Now, even more recent research published in the March, 2013 issue of The Journal of Clinical Endocrinology & Metabolism suggests that... 

vitamin D3 plays a key role in promoting muscular efficiency and energy production.

How is muscular energy produced?

Our cellular engines, the mitochondria, use glucose and oxygen to make an energy-rich molecule called ATP.  Muscle cells need large amounts of ATP for movement, and they use phosphocreatine as a ready and available energy source to it.  The mitochondria replenish phosphocreatine after a muscular contraction.  Measuring the time this action takes is an indicator of mitochondrial efficiency; better mitochondrial function is associated with shorter phosphocreatine recovery times.

Now, a brief summary of the most recent study:   

Researchers found that after using a vitamin D3 supplement for 12 weeks, subjects who were originally deficient showed significant improvements in energy production and muscular recovery capacities.  In fact, the average phosphocreatine recovery time decreased from 34.4 seconds to 27.8 seconds.  In a parallel study, the researchers demonstrated that low vitamin D3 levels were associated with reduced mitochondrial function.  According to Dr. Sinha, the study's lead researcher, "We have proven for the first time a link between vitamin D3 and mitochondrial function."

What does this mean for you?

That your personal potential for muscular strength and recovery depends upon having enough (55 to 65 ng/ml) vitamin D3!   And you can feel assured that if you are regularly using Core 4 Nutrition's RemeD sublingual spray,  you're getting the job done!  But regardless of your current supplement routine,  it's important to assess your vitamim D3  level on a regular basis.  And you can do it with a simple, at-home fingerstick assessment . No painful blood draws (or doctors' appointments) are necessary.