Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Vitamin A (retinyl acetate) plays a well-established biological role in supporting several glands within the human glandular (endocrine) system, most notably the thyroid, pituitary, and reproductive glands. Scientific evidence demonstrates that vitamin A is essential for the synthesis of glycoproteins, the maintenance of epithelial tissues, and the regulation of gene expression—all of which are crucial for normal glandular function. For example, studies have shown that vitamin A deficiency can impair thyroid hormone metabolism and reduce the synthesis of thyroid hormones, which are vital for metabolic regulation (source). Additionally, vitamin A is necessary for the production of steroid hormones in the adrenal glands and gonads, impacting reproductive health and stress responses.

While vitamin A is not typically described as a direct "glandular tonic," its foundational role in supporting the structural and functional integrity of glandular tissues is well documented. However, most of the evidence comes from deficiency studies rather than research into supplemental benefits in already well-nourished individuals. There is less direct clinical trial data on vitamin A supplementation specifically enhancing glandular system function in healthy people. Thus, while the scientific rationale exists, the strength of evidence for supplementation in the absence of deficiency is moderate.

More about Vitamin A (retinyl acetate)
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adrenal cortex
alfalfa
amino acids
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basil
black cohosh
sesame
bovine
bovine kidney
bovine liver
bovine pancreas
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fruit and vegetable blend (proprietary)
gamma linolenic acid (GLA)
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ginseng
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gooseberry
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linoleic acid (LA)
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niacin (vitamin B3)
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vitamin A
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Other body systems supported by Vitamin A (retinyl acetate)

Eyes
Gastrointestinal Tract
Glandular System
Immune System
Intestinal System
Mucus Membranes
Reproductive System
Skin
Small Intestines

Products containing Vitamin A (retinyl acetate)

We currently have no products on Caring Sunshine that contain this ingredient.