Published on: 4/7/2025
Yes, a zinc deficiency can lead to changes in your fingernails, such as making them brittle or causing discoloration, and it can be corrected with dietary adjustments or zinc supplements under professional guidance.
Zinc is an essential mineral that helps your nails, skin, and hair stay healthy. When you don't get enough zinc, your nails can change in appearance; they might become brittle, thin, or show discoloration and white spots. Studies have shown that adults with zinc deficiency may experience these nail changes. To correct a zinc deficiency, you can increase your intake of zinc-rich foods. Good sources include shellfish, red meat, poultry, beans, nuts, seeds, and dairy products. In some cases, your doctor may recommend taking a zinc supplement, but it’s important to use these under medical guidance because too much zinc can lead to other problems. Additionally, if you think you may have a zinc deficiency affecting your nails, it might be helpful to get a blood test to check your zinc levels and discuss the best options with a healthcare provider. With the correct dietary changes or supplements, you can help your nails regain their strength and normal appearance over time.
(References)
Saritha M, Gupta D, Chandrashekar L, Thappa DM, Rajesh NG. Acquired zinc deficiency in an adult female. Indian J Dermatol. 2012 Nov;57(6):492-4. doi: 10.4103/0019-5154.103073. PMID: 23248371; PMCID: PMC3519260.
Al-Khafaji Z, Brito S, Bin BH. Zinc and Zinc Transporters in Dermatology. Int J Mol Sci. 2022 Dec 18;23(24):16165. doi: 10.3390/ijms232416165. PMID: 36555806; PMCID: PMC9785331.
Maxfield L, Shukla S, Crane JS. Zinc Deficiency. [Updated 2023 Jun 28]. In: StatPearls [Internet].
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