Evidence supporting the use of: Zinc Picolinate
For the body system: Nails

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Synopsis

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

Zinc picolinate is a form of zinc that is commonly used in dietary supplements due to its superior absorption compared to other zinc salts. Zinc is an essential trace mineral that plays a vital role in numerous biological processes, including DNA synthesis, immune function, and cell division. Scientific evidence indicates that zinc is important for the maintenance of healthy skin, hair, and nails. Zinc deficiency has been associated with symptoms such as brittle nails, slow nail growth, and the appearance of white spots on the nails. Supplementation with zinc, in cases of deficiency, has been shown to improve these symptoms and support nail strength and growth.

However, the majority of clinical research has focused on general zinc supplementation, rather than specifically on zinc picolinate or its unique effects on nail health. There are no large-scale randomized controlled trials directly investigating zinc picolinate for nail health in otherwise healthy individuals, but the form is considered effective for increasing zinc levels. Overall, scientific validation exists for the role of zinc in supporting nail health, especially where deficiency is present, but direct evidence for zinc picolinate's unique efficacy in this context is limited.

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