Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Calcium is a mineral essential for various physiological processes, most notably bone and dental health. Its role in nail health is more indirect, but there is some scientific foundation for its inclusion in products or recommendations aimed at supporting the nails. Nails, like bones and teeth, are composed largely of keratin, not calcium; however, calcium is necessary for the functioning of enzymes and cellular processes that underpin keratinization and nail growth. Deficiency in calcium can sometimes manifest as brittle or weak nails, although such symptoms are more reliably linked to overall malnutrition or specific deficiencies in other nutrients (such as biotin or iron).

Scientific evidence directly supporting calcium supplementation to improve nail strength or growth is limited and not robust. Most large-scale studies and reviews focus on calcium’s role in bone health, with nail health discussed only anecdotally or peripherally. Nonetheless, ensuring adequate dietary calcium is considered part of an overall approach to maintaining healthy nails, as well as skin and hair. Calcium deficiency states may contribute to nail abnormalities, but supplementation beyond normal dietary requirements has not been shown to offer additional benefit for nails in healthy individuals.

In summary, while calcium is scientifically recognized as necessary for health and may impact nails indirectly, strong evidence for its targeted use to support nail health is lacking. Its inclusion is justified, but the direct impact is modest.

More about calcium
More about Nails

Other ingredients that support Nails

Other body systems supported by calcium

Products containing calcium

Nature's Sunshine Love and Peas (Sugar Free)
Nature's Sunshine AIVIA Clean Energy
Nature's Sunshine AIVIA Hydrate
Nature's Sunshine AIVIA MCT Powder
Nature's Sunshine AIVIA Plant Protein
Nature's Sunshine AIVIA Plant Protein
Nature's Sunshine AIVIA Whey Protein
Nature's Sunshine AIVIA Whey Protein
Nature's Sunshine Balanced B Complex (Vitamin B)
Nature's Sunshine Bilberry Fruit (Concentrate)
Nature's Sunshine Estro-Assured (Formerly Breast Assured)
Nature's Sunshine Calcium-Magnesium (SynerPro)
Nature's Sunshine Calcium Plus Vitamin D
Nature's Sunshine Chromium-GTF
Nature's Sunshine Coral Calcium
Nature's Sunshine Coral Calcium
Nature's Sunshine Iron (Chelated)
Nature's Sunshine Love and Peas
Nature's Sunshine Magnesium
Nature's Sunshine Mega-Chel
Nature's Sunshine MultiVitamin & Mineral (SynerPro)
Nature's Sunshine MultiVitamin & Mineral (Time Release)
Nature's Sunshine Natural Changes
Nature's Sunshine Nature's Harvest
Nature's Sunshine Power Meal
Nature's Sunshine Power Meal
Nature's Sunshine Sea Calcium (Nature's)
Nature's Sunshine Silver Shield BioGuard Hand & Body Cream
Nature's Sunshine Skeletal Strength
Nature's Sunshine Solstic Twenty-Four
Nature's Sunshine Solstic Revive
Nature's Sunshine Stixated
Nature's Sunshine Stomach Comfort (Chewable)
Nature's Sunshine Structural System (30 Day Program)
Nature's Sunshine Super Supplemental
Nature's Sunshine Super Supplemental (Without Iron)
Nature's Sunshine Super Trio
Nature's Sunshine Vitamin B6
Nature's Sunshine Vitamin C Ascorbates
Nature's Sunshine Chewable Vitamin C
Nature's Sunshine Citrus Bioflavonoids (Vitamin C)
Nature's Sunshine VitaWave
Nature's Sunshine Zinc