Evidence supporting the use of: Iron
For the health condition: Fingernails (weak or brittle)

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Synopsis

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

Iron is scientifically validated as a treatment for weak or brittle fingernails, particularly when these symptoms are associated with iron deficiency or iron deficiency anemia. Iron is essential for hemoglobin production and oxygen transport throughout the body, including to the nail matrix, the area where nail growth originates. When the body lacks sufficient iron, it can lead to a condition called koilonychia, or "spoon nails," in which the nails become thin, brittle, and concave. Numerous clinical studies and reviews have documented the relationship between iron deficiency and changes in nail appearance and strength. In cases where iron deficiency is present, supplementation with iron can help restore normal nail growth and strength. However, in individuals with normal iron levels, there is little evidence to support the use of iron supplements for nail health, and excessive iron intake can be harmful. Overall, the use of iron to support or treat weak or brittle nails is strongly supported by scientific evidence, but primarily in the context of deficiency. It is important to determine the underlying cause of nail abnormalities before beginning supplementation, as not all cases of brittle nails are due to iron deficiency.

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More about Fingernails (weak or brittle)

Other ingredients used for Fingernails (weak or brittle)

Alfalfa
biotin
collagen
gelatin
iron
Milk
Moringa
silicon
keratin
vitamin E
Zinc