I went to kindergarten in the mid-1980s. As a child, I remember how, I guess after lunch, they gave us those little fluoride pills "to our teeth." There were four or five each time. Those of you who are of a similar age will certainly remember it very well. Do you think that they harmed us a lot then? 

Information sludge

We live in a time when we are inundated with information about industrially produced products - the good ones - when it is hammered into our heads that if we do not eat this or that, we do not give our body what we should have. Televisions, magazines, radio stations, social networks, ubiquitous "leaflet-brochure campaigns" are crowded with "cool" commercials and pictures of various commercial supplements. Not including fluoride. Most distributors try to convince us "how important their product is to us."

Sources of fluorine and method of intake

Due to its high reactivity, fluorine does not occur in nature in the elemental state, but only in compounds. As an element, it has the greatest electronegativity of all the representatives of the periodic table. Only helium and neon are higher (however, no compounds are known for these). It is a natural part of the earth's crust, occupying 0.35 %. From there, it enters the ecosystem in a natural way, mainly due to volcanic activity. Fluorine is present in trace amounts practically everywhere. In the air, most soil types are part of the oceans. Depending on the geological conditions of a given locality, the concentrations of fluorine contained in drinking water sources vary. You can find it in food, as well as in the bodies of other organisms and plants - potential human diets.

On average, about 85 % fluorine is absorbed into the body through the digestive tract, especially the stomach and intestines. Absorption itself is relatively rapid, with up to half of the average dose being able to enter the system within thirty minutes. The whole process does not take more than an hour and a half. In other words, the digestive tract is a kind of main gateway to our body. The distribution of fluorine in the body occurs immediately after absorption and lasts for minutes. Up to 99 % of absorbed fluorine per day is stored in calcified tissues (bones and developing teeth). Exactly where it works beneficially, or it can cause nice mischief.

Extensive human activity also has a great influence on the occurrence of fluorine compounds in our environment. Fluoride enters our environment (or its concentration increases intensively) mainly due to the metallurgical industry, agriculture (using chemical fertilizers), fluoridation of consumer goods and artificial fluoridation of drinking water. And it is the latter who are currently most emotional in many discussions in the scientific field, in the public sector, including the legislative level of the states involved. About that in a moment.

Power is worse than less

Fluorine is generally known to be necessary for the healthy development of bones and teeth in particular. It is an element that is necessary for our body in the right amount, just like iron or iodine. Therefore, if we are facing a shortage or surplus, in both cases there will be health complications. Sufficient fluoride in the body supports the mineralization (strengthening) of the tooth enamel, which thus acquires the necessary hardness and thus resistance to external influences. It's similar for bones.

Lower concentrations of fluorine in the body to some extent slow down these processes, say. Of course, this is not entirely good. However, it is important to know that in the world (in our civilization) in which we live, there can never be a day that no fluorine enters your body at all. We are permanently surrounded by various resources. So it's practically impossible. And so a situation where you suffer from a lack of fluorine is not entirely right, yet this condition is still less serious than when your body is constantly exposed to above-limit values! If the human body is so burdened, the chances of developing serious and irreversible diseases increase rapidly. Time-continuous overdose of the body with fluorine is mainly associated with changes in the teeth and bones. It is a so-called dental and skeletal fluorosis.


If there are visible "over-bleached" (sometimes brownish) spots or dashes on your or your children's teeth, you probably underwent dental fluorosis as a child and your child now has it. Because the incorporation of an excessive amount of fluoride can thus negatively affect only the development of the enamel, the coloration occurs in childhood. Especially in the first eight years of life, when permanent teeth are established (and later developed). The mechanism of the disease is a continuous disruption of the natural metabolism of cells, which is associated with the development of teeth, an excess of fluorine. The disease may have a mild course, with small white spots or dashes appearing on the enamel. Or it can progress to a serious stage, when brownish formations begin to form, which can affect the entire tooth. In the latest stages, there are also visible deformations of the tooth (porous surface). Such changes in the teeth are irreversible and there is no danger of the affected teeth other than an aesthetic defect. Some studies even suggest that teeth after undergoing mild to moderate dental fluorosis are more resistant to caries. Which we actually welcome. Even so, it is a fairly high tax issued for lower perishability. What do you think?

What about bones? With a high excess to which the organism is exposed (again) for a long time (units of years to a decade), fluorine gradually accumulates in the bone tissue. The result is an increase in the stability of the structure and insolubility of the affected bone. This results in less tissue solubility and bone mineralization is limited. This reduces its flexibility and its strength is mainly weakened in tension. The bone becomes more fragile and therefore more prone to breakage. The severity of the disease depends on the amount of fluorine incorporated in the bone. In the early stages, the disease may not manifest itself at all and is usually detected accidentally on an X-ray, when an unusual increase in bone mass is recorded. Other stages of the disease are manifested by occasional stiffness, joint pain, osteosclerosis of the pelvis or vertebrae. The intensity of these clinical manifestations increases with increasing severity. The disease can develop into permanent damage to the musculoskeletal system. However, this is an extreme situation that occurs very rarely.

Fluorination in the Czech Republic and in the world

Fluorination of drinking water (possibly consumer goods) in order to prevent tooth decay is being promoted as one of the greatest achievements of the twentieth century. It has even been named one of the top 10 public health successions in the United States. The town of Grand Rapids in the state of Michigan was the first inhabited place in the world to start fluoridating drinking water. The year was 1945. In Czechoslovakia and later in Bohemia, the fluoridation of drinking sources was carried out from 1958 to 1988. The cities of Brno and Tábor were selected as pilot cities, starting.

On the topic of fluoridation in our country, I managed to find an already somewhat archival but very impressive article from 2001, published in MF Dnes. In the text, Otakar Krejsa, then director of the Research Institute of Dentistry in Prague, commented on the problem as follows: “It was a relatively expensive method and did not take into account that everyone should have the right to decide freelywhether he wants to consume fluorine or not. ”Well said, isn't it? Entitlement to a source of drinking harmless) Water is one of the fundamental human rights that should not be violated or "modified" in any way. Dot. In addition, Krejsa also talks in the article that the technology itself is slowly losing its effect (prevention of dental caries), as the public has become increasingly accustomed to consuming bottled water.

Sodium fluoride (NaF), hexafluorosilicic acid (H 2 SiF 6) or sodium fluorosilicate (Na 2 SiF 6) are mainly used to fluoridate drinking water and consumer products such as various toothpastes, gels and supplements. Hexafluorosilicic acid is a by-product in the production of phosphate fertilizers. So actually production waste. Here we are on the breeding ground of conspiracy theorists who believe that (especially within the United States) disposing of this chemical waste in an environmentally friendly way was quite expensive. Thus, the production of phosphate fertilizers has become unbearably expensive.

Another and widest ingredient in foods and products is sodium fluoride. This is prepared by neutralizing hydrofluoric acid (HF) and (again) hexafluorosilicic acid. NaF is widely used in the metallurgical (extractive metallurgy) and cosmetic industries. It is also used as a cleaning agent. It is classified as highly toxic.

Dr. Mercola [1], a physician, a great human rights activist and proponent of holistic medicine, points to possible complications of overdose, referring to a five-hundred-page study [2]. Where, among other things, he points out that fluorides are so-called endocrine disruptors (substances that act as hormones and disrupt the physiological functions of hormones in the body, ed. Note), which have an adverse effect on the proper functioning of hormones in humans. calf. Specifically, it adversely affects the proper functioning of the brain, thyroid gland, pineal gland (endocrine gland - also referred to as the "third eye or" seat of the spirit ") - secreting melatonin, an important hormone affecting the body's biorhythms, sleep, wakefulness, perception and gonadal function. , last but not least) and last but not least it also affects the level of sugar in the body (risk of developing second degree diabetes).

In the Czech Republic (Czechoslovakia) we stopped fluoridation. Thank God. With a few exceptions, other EU countries are either similar or have not even considered fluoridation. Countries where they have not bothered to do such a thing at all are Austria, Croatia, Greece, Northern Ireland and Norway. In Denmark, Latvia, France and Estonia, higher levels of fluorine in water sources are natural. Belgium does not fluoridate, although the legislation allows it. In Finland, fluoridation was experimented with locally in Kuppio. They stopped in 1992. In Germany, products containing artificially added fluorine are widely promoted by the government. Except for the Wahlershausen district of Kassel, where experiments were conducted from 1952 to 1962, fluorides were never added to drinking water. In "East Germany", the situation was similar to that in Czechoslovakia. Hungary also tested a local experiment in the early 1960s in Szolnok. However, he abandoned the method and never returned to it. About 10 % drinking water in Spain is fluorinated. In 1952, Norrköping, Sweden, was one of the first European cities to artificially add fluorine to drinking water. In 1961, it was declared illegal. A year later, the verdict was overturned, and it was not until 1971 that artificial water fluoridation by the Swedish parliament was definitively outlawed.

The Netherlands fluorinated in most areas from 1960 to 1973. When the authorities finally decided that adding any chemical substance to the public water system was illegal. From 1962 to 2003, two water and salt fluoridation programs were operated in parallel in Switzerland and in the rest of the country. Since April 2003, only salt has been fluorinated. About 10 10TP1T populations in the UK are distributed fluorinated water. Less than a percentage of it is natural.

Ireland Yippee the only country in the EU where it is intensively fluorinated. This is a nationwide regulation. In addition to Ireland and the United States, there are 21 other countries where drinking water is intensively fluorinated. Namely: Argentina, Australia, Brazil, Brunei, Chile, Fiji, Guatemala, Guyana, Hong Kong, South Korea, Canada, Israel, Libya, Malaysia, New Zealand, Panama, Papua New Guinea, Peru, Serbia, Singapore and Vietnam.

So how much can we have ?!

It is therefore good to keep the consumption of NaF to a minimum and to have at least a rough overview of how much fluorine enters our body. The paradox, however, is that the safe daily dose is not known! All sources only talk about the dose recommended. And they also differ slightly from each other. So the average of all the available data that I managed to find is based on 0.06 mg of fluorine per 1 kg of body weight per day.

Follow your own intuition

So use that golden common sense and try to replace chemistry with natural products. If you are unsure, consult yourself from various sources or from a nutritionist.

Jeremy Seifert's short film Our Daily Dose is definitely worth watching.

References and resources:

  1. https://articles.mercola.com/sites/articles/archive/2013/04/30/water-fluoridation-facts.aspx
  2. Fluoride in Drinking Water, A Scientific Review of EPA's Standards (2006), available at The National Academy Press (https://www.nap.edu/)
  3. Fluoride not only good for teeth, Hana Dancingerová, Department of Preventive Medicine, Faculty of Medicine, Masaryk University, Bachelor's thesis (pdf version), 2011
  4. https://www.ecomonitor.cz/
  5. MUDr. Dana Maňasková, https://medicinman.cz/?p=leky-latky/fluor

6. www.wikipedia.org