Evidence supporting the use of: Vitamin D
For the body system: Glandular System

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Vitamin D has significant scientific validation for its role in supporting the glandular (endocrine) system. The glandular system includes organs such as the parathyroid, pancreas, pituitary, thyroid, and adrenal glands, all of which secrete hormones to regulate body functions. Vitamin D is most well-known for its role in calcium metabolism and bone health, but research has extended its significance to several glands within the endocrine system.

A major, well-documented function of vitamin D involves the parathyroid glands, which regulate calcium levels in the blood. Vitamin D deficiency leads to increased parathyroid hormone (PTH) secretion (secondary hyperparathyroidism), which can result in bone demineralization. Supplementation with vitamin D is a standard therapy to prevent or treat this, showing clear glandular support (source).

Emerging research also suggests that vitamin D influences the pancreas, particularly the beta cells that produce insulin, and may play a role in reducing the risk of diabetes (source). Some evidence links vitamin D status with thyroid function and adrenal health, although these areas are less established than its effect on parathyroid and pancreatic glands.

In summary, vitamin D has a scientifically validated role in supporting the glandular system, primarily through parathyroid and pancreatic function, with moderate evidence for broader endocrine effects.

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