Concentration
and Dose:
What’s the difference?
“Fluoridation at optimal level is safe for everyone.”
“Fluoride concentration in water is very, very strictly regulated.”
“At optimal levels in drinking water, overdose does not occur.”
Public health officials are on record stating that fluoridation at the recommended level is safe and effective because “optimal concentration” provides a safe dose of fluoride in the water that benefits the dental health of everyone, young and old, every day, regardless of income or other factors.
Is this really true? Many councillors and members of the public are confused.
“Optimal concentration” has a number but “optimal dose” does not. How do we protect ourselves and our children from fluoride overdose when the concentration of fluoride in our tap water has been increased far more than nature provides?
Concentration IN water does not regulate dose FROM water.
Concentration = level of dilution.
Dose = concentration x volume consumed.
You are a hospital patient. The nurse has orders to give you a certain concentration of a drug through your intravenous line. Shouldn’t the doctor write the dose and dosage so that the nurse can calculate the volume and rate of flow of the drug solution to administer?
Many people are advised to reduce sodium intake. If there is one teaspoon of salt in one liter of soup, the concentration of sodium is the same in one spoonful of soup as it is in one bowl and the whole pot. But what is the dose per serving?
Vitamin pills can poison a child. Your 13-kilogram toddler got into your vitamins with a dose of one milligram of iron in every large pill and ate thirty pills. You rush to the hospital in a panic. A doctor trained in public health administration says, “Oh, don’t worry; the concentration of iron in these pills is too low to cause iron poisoning. Iron is a nutrient mineral. Vitamins with iron are safe and effective, just like fluoridation.” Do you find another doctor to pump your child’s stomach from the toxic overdose of 30 milligrams?
It used to be legal to drive with a blood alcohol concentration up to .08 on the Breathalyzer. Mothers Against Drunk Driving (MADD) proved that drivers are impaired at much lower level, from consuming even one beer. A bottle of beer or glass of wine with a low concentration of alcohol delivers the same unsafe dose for a driver as a shot of whiskey with higher concentration. The laws were changed.
The same dose from water has different effects on different people.
Toronto Mayor Rob Ford weighs 150 kilograms (kg), and Angel Voice, an eleven year old contestant on American Idol weighs only 40. They both drink two liters of tap water a day. At the fluoridation level of 0.7 they both get the same dose of 1.4 mg.
Mayor Ford’s body dose is 1.4 ÷ 150 = .009 mg/kg.
Angel Voice’s body dose is 1.4 ÷ 40 = .035 mg/kg: ~ 4x more.
Mayor Ford excretes half of his dose in urine. Absorbed dose: .7 mg. Body dose: .0045 mg/kg.
Angel Voice absorbs most of her dose into her still-growing bones. Absorbed dose: 1.2 mg. Body dose: ~ 7x more than Mayor Ford’s.
The dose of fluoride in mother’s milk to a breastfed baby is .004-.010 mg/day. The dose of fluoride to a baby fed formula made from powder and boiled fluoridated tap water is .400-1.000 mg/day, one hundred times more.
Fluoride dose of more than .010 mg/day may affect infant development adversely. The harm is greater if the baby is deficient in iodine. (NRC report 2006)
The impact of a daily fluoride dose 100 times higher than Mother Nature provides to a baby is likely to be irreversible: a reduction in IQ and dental fluorosis, both which will be evident by age 7. (fluoridealert.org; The Case Against Fluoride, Connett-Beck-Micklem)
Toronto Water has had overfeeds of fluoride resulting in tap water with more than 2 mg/L for unknown periods of time.
In one day Angel Voice would get an overdose of 4 milligrams.
A bottle-fed baby, five times smaller, would get 2 milligrams, capable of causing vomiting and diarrhea, impaired kidney function, and damage to growing bones and teeth.
Concentration of fluoride is NOT regulated.
Fluoride level in drinking water is not regulated by Health Canada, provincial law or municipal bylaw. There is no required “optimal”, nor penalty for exceeding the World Health Organization limit of 1.5 mg/l. There is no law to warn or protect the public from a toxic level in drinking water from nature, machine, accident or human error.
Everyone is overdosed by fluoridation.
Water intake is regulated by biological need, not law. But there is no biological need for fluoride at all. Supplementary fluoride in any daily dose, large or small, whether from kitchen tap or pharmacy, is neither effective in reducing tooth decay nor safe for everyone. Any artificial increase in daily fluoride intake is overdose. There is nothing “optimal” about this.
The vulnerable are harmed the most.
Harmful effect is regulated by age, nutrition, genetics and kidney function – not level of fluoride in water! The developing fetus, bottle-fed infant and child are most vulnerable. When water is artificially fluoridated, they get the largest overdose, accumulate higher body burden sooner, and suffer higher risk of irreversible effects.
#1 by Kenneth on July 28, 2012 - 2:34 am
Harvard Study Finds Fluoride Lowers IQ