What is the difference between dose and concentration?


Concentration is the amount of fluoride in fluoridated drinking water (e.g. 1 mg/L). Dose depends on how much water a person drinks [1]. In other words, if you drink 5 litres of water that contains 1 milligram per litre of fluoride concentration, you have just consumed a dose of 5 milligrams of fluoride.

But it isn’t so simple. You most likely will have received fluoride from a variety of other sources [2], which will have combined to increase your total dose. So you really don’t know how much fluoride you actually received as a total dose. And what about your long-term doses of fluoride, over months and years?

The reason it is so difficult to determine your total dose is because most water supplies are artificially fluoridated, and this literally gets into virtually everything:

“The major dietary source of fluoride for most people in the United States is fluoridated municipal (community) drinking water, including water consumed directly, food and beverages prepared at home or in restaurants from municipal drinking water, and commercial beverages and processed foods originating from fluoridated municipalities” [3].

“The single most important contributor to fluoride exposures (approaching 50% or more) is fluoridated water and other beverages and foods prepared or manufactured with fluoridated water” [4].

Therefore, there is no doubt that when authorities fluoridate your water supply, with a certain concentration of fluoride in drinking water, they are vastly increasing your total exposure to fluoride and therefore your overall doses of fluoride [5].

[1] Concentration vs dose, Overview
[2] Sources of fluoride, FAN
[3] Measures of Exposure, NRC
[4] Measures of Exposure, NRC
[5] Dose vs. Concentration: Clearing up the Misconceptions, Critiquing Fluoridation

Author: AFA Mildura

Administrator, Anti-Fluoridation Association of Mildura

5 thoughts on “What is the difference between dose and concentration?

  1. Pingback: Slott’s continued shilling for the AFS |

  2. Persistent liars, cherrypickers and cowardly trolls should be banned from commenting on this site.
    Unless of course they help our cause (clean safe water) more, by showing how foolish their cause is, of pushing for the whole population to be swallowing toxic topical industrial waste treatments in water, food and beverages.



  3. The spinning slott machine has cherry picked US figures provided by Lying US Health Depts using bogus figures.
    Australia’s FSANZ has calculated the AVERAGE daily dietary dose of fluoride to be about 50% of dietary intake, from food and beverages and about 50% from water. Most food and beverages doses are at unknown amounts.

    Now add on other sources dental products, air, soil, medications, workplace exposures, etc, all unknown levels.

    The slott only gives a part of the picture and has omitted important facts, that is lying by omission.

    Persistent liars should be banned from commenting on this page


  4. Pingback: Is fluoride an endocrine disruptor? |

  5. Concentration is the amount of a substance divided by the volume of the solution in which it is incorporated. Dose is an amount. For every one liter of optimally fluoridated consumed, 0.7 mg of fluoride is ingested. The CDC estimates that 75% olf total fluoride intake is from water and beverages.

    Given these facts, it is a simple matter to determine your total fluoride intake. Take the number of liters of water and beverages consumed, multiply by 0.7, divide by 75% and you have your total fluoride intake.

    The fact that 75% of the total fluoride intake from all sources is from water and beverages, is a demonstration of how very little fluoride is obtained from other sources. There is no chance of overdosing on fluoride from fluoridated water in conjunction with normal outside sources. Before such overdosing could occur, water toxicity would be the concern, not fluoride.

    Steven D. Slott, DDS

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