The claim

「Late teething means calcium deficiency」

Q: Late teething means calcium deficiency

Myth — Most babies get their first tooth between 6 and 12 months, and the variation is wide — some have no teeth at all by their first birthday, which is still normal. Timing is mostly genetic and has nothing to do with calcium supplements. The AAP suggests a first dental visit once that tooth appears, and by the first birthday at the latest; raise any worries then.

Verdict

Myth

Most babies get their first tooth between 6 and 12 months, and the variation is wide — some have no teeth at all by their first birthday, which is still normal. Timing is mostly genetic and has nothing to do with calcium supplements. The AAP suggests a first dental visit once that tooth appears, and by the first birthday at the latest; raise any worries then.

Sources

AAP · American Academy of Pediatrics
American Academy of Pediatrics. (n.d.). Baby's first tooth: 7 facts parents should know. https://www.healthychildren.org/English/ages-stages/baby/teething-tooth-care/Pages/Babys-First-Tooth-Facts-Parents-Should-Know.aspx
Direct source · Academic institution / professional society · checked 2026-08-02

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「Late teething means calcium deficiency」

Verdict

Sources

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Further reading