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Referring to a common salt of fluoride, sodium fluoride (NaF), the lethal dose for most adult humans is estimated at 5 to 10 g (which is equivalent to 32 to 64 mg elemental fluoride/kg body weight). [ 2 ] [ 3 ] [ 4 ] Ingestion of fluoride can produce gastrointestinal discomfort at doses at least 15 to 20 times lower (0.2–0.3 mg/kg or 10 to 15 ...
According to the Mayo Clinic, “Allergy symptoms, which depend on the substance involved, can affect your airways, sinuses and nasal passages, skin, and digestive system.” [5] The severity of the following symptoms varies from child to child. [5] The symptoms of indoor and outdoor allergies in children may include: [18] [19] Runny nose
Symptoms such as fractured hips in the elderly or brittle and weak bones may be caused by fluorine deficiency in the body. [14] Fluoride stimulates bone formation and increases bone density; [15] however, bone with excess fluoride content has an abnormal structure resulting in increased fragility. Thus, fluoride therapy results in large ...
The intradermal allergy test is more sensitive than the skin prick test, but is also more often positive in people that do not have symptoms to that allergen. [ 40 ] Even if a person has negative skin-prick, intradermal and blood tests for allergies, they may still have allergic rhinitis, from a local allergy in the nose.
The new meta-analysis found that for every 1 mg/L increase in urinary fluoride, which is an estimate of total fluoride exposure, there is a decrease of 1.63 IQ points in children.
A rigorous nine-year research review looking at the relationship between fluoride and intelligence in children concludes that as fluoride levels rise, IQ drops. Every 1 part per million increase ...
Fluoride has been added to public water supplies in the U.S. for decades. No studies in the U.S. have flagged any measurable decreases in children's cognitive development since fluoride was ...
Food allergies: 7.6% of children and 10.8% of adults. [156] Peanut and/or tree nut (e.g. walnut) allergy affects about three million Americans, or 1.1% of the population. [154] 5–7% of infants and 1–2% of adults. A 117.3% increase in peanut allergies was observed from 2001 to 2005, an estimated 25,700 people in England are affected ...