“The principal physiological function of vitamin D in all vertebrates, including humans, is to maintain serum calcium and phosphorus concentrations in a range that supports cellular processes, neurological function, and bone ossification. Vitamin D accomplishes this goal by enhancing the efficiency of the small intestine to absorb dietary calcium and phosphorus and by mobilizing calcium stores from the bone”.
Clinically, food vitamin D has been used for problems including:
* Hyperirritability (insomnia, restlessness, tachycardia, cramps)
* Tetany (muscle spasms)
* Bone disorders (osteoporosis)
* Lung conditions (bronchitis)
* Lowered resistance (worse in winter due to lack of sunshine)
* Indoor living (avoidance of exposure to sunshine)
* Epistaxis (nosebleeds)
* Delayed healing (bed sores, ulcers, etc.
Shiitakes produce vitamin D2 upon exposure to ultraviolet B (UVB) rays from sunlight or broadband UVB fluorescent tubes.The shiitake has a medium-sized, umbrella-shaped, tan to brown cap. The edges of the cap roll inwards. The caps have a soft, spongy texture. The underside and stems are white. Shiitakes grow in groups on the decaying wood of deciduous trees, particularly shii, chestnut, oak, maple, beech, sweetgum, and poplar. It is found wild in the mountainous regions of China, Japan, Indonesia, and Taiwan. It is not found wild in the United States or elsewhere.
See Large Label