WHO Warns Excess Fluoride May Harm Children’s Health and IQ Levels

Written By :  Anshika Mishra
Published On 2026-03-23 12:45 GMT   |   Update On 2026-03-23 12:54 GMT

Fluoride, a naturally occurring inorganic mineral, plays a crucial role in oral health but can be harmful in excess. According to the World Health Organization, fluoride helps prevent cavities by strengthening tooth enamel and increasing resistance to acid. Globally, around 2.4 billion people suffer from dental caries in permanent teeth, while 486 million children are affected in primary teeth.

The WHO recommends controlled fluoride use through toothpaste, fluoridated water, and a low-sugar diet. However, excessive intake-especially in regions with high fluoride levels in groundwater like India-can lead to dental and skeletal fluorosis, bone deformities, and osteosclerosis, reports DNA India.

Beyond oral effects, studies cited by the US National Library of Medicine and published in The Lancet Neurology suggest fluoride may act as a neurotoxicant, potentially lowering IQ in children. Fluoride is found in dental products, drinking water, and some foods. Experts advise supervising children while brushing to prevent ingestion and avoiding excessive fluoride exposure from multiple sources.

Full View
Tags:    

Disclaimer: This website is primarily for healthcare professionals. The content here does not replace medical advice and should not be used as medical, diagnostic, endorsement, treatment, or prescription advice. Medical science evolves rapidly, and we strive to keep our information current. If you find any discrepancies, please contact us at corrections@medicaldialogues.in. Read our Correction Policy here. Nothing here should be used as a substitute for medical advice, diagnosis, or treatment. We do not endorse any healthcare advice that contradicts a physician's guidance. Use of this site is subject to our Terms of Use, Privacy Policy, and Advertisement Policy. For more details, read our Full Disclaimer here.

NOTE: Join us in combating medical misinformation. If you encounter a questionable health, medical, or medical education claim, email us at factcheck@medicaldialogues.in for evaluation.

Our comments section is governed by our Comments Policy . By posting comments at Medical Dialogues you automatically agree with our Comments Policy , Terms And Conditions and Privacy Policy .

Similar News