Camp Grayling Joint Maneuver Training Center. Camp Grayling is a premier, full-spectrum, four-season joint training center, providing year round, customer-focused training support and high quality facilities to enable military commanders and civilian leaders to meet their unit readiness requirements.
This shows that nearly 40% of all patients with PRIMARY hyperparathyroidism have Vitamin D-25 levels that are below 20 ng/ml. 60% have vitamin D levels above 20, but that includes 29% who have levels between 20 and 30, which is considered deficient. Nobody with a parathyroid tumor has high Vitamin D-25 levels.
But that assumption is not necessarily true. Sunscreen, reduced time in the sun and limited dietary sources of vitamin D all conspire to put you at risk for a deficiency. Even if you do produce or consume enough of this vitamin, you may still be at risk for vitamin D depletion.