Evidence supporting the use of: Gelatin
For the health condition: Fingernails (weak or brittle)
Synopsis
Source of validity: Traditional
Rating (out of 5): 1
Gelatin has been traditionally used as a remedy for weak or brittle fingernails. The rationale is based on the fact that gelatin is a source of protein derived from collagen, the main structural protein in connective tissues. Historically, people believed that consuming gelatin would help strengthen nails, hair, and skin, as these are also made of protein. However, scientific studies have not conclusively validated these claims. A handful of small, older studies and anecdotal reports suggest some benefit, but these are limited in scope, quality, and scientific rigor.
Modern research on nail health emphasizes the importance of overall nutrition, including adequate protein, biotin, and certain minerals, but does not specifically support gelatin supplementation as an effective treatment. The protein in gelatin is not the same as keratin, the main protein in nails, and it is broken down during digestion into amino acids, making its specific impact on nail strength questionable. Despite the lack of strong scientific evidence, gelatin remains a popular traditional remedy, largely due to its long history of use and anecdotal reports rather than robust clinical trials.
In summary, while gelatin has a traditional role in supporting fingernail health, current scientific evidence supporting its effectiveness is minimal. Those considering gelatin for nail health should be aware that benefits are not strongly supported by modern research.