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You probably know that mercury, lead, and other heavy metals will not be nice for the physique and might trigger a number of points. However whether or not or not fluoride is secure (or efficient) is extra controversial.

Is Fluoride Helpful?

Within the early a part of the 20 th century, it was found that small communities who had larger ranges of naturally occurring fluoride of their ingesting water had fewer dental caries (cavities). Naturally fluoridated water at about 1mg/L appeared to be helpful to dental well being. (Fluoride that’s naturally occurring is calcium fluoride.)

Sadly, the fluoride that’s usually added to water provides within the U.S. is hydrofluoric acid (an industrial by-product), not elemental fluorine or calcium fluoride. It’s well-known that naturally occurring substances (even heavy metals) are typically higher tolerated by the physique than artificial counterparts.

However as a result of early research confirmed few dental caries in communities utilizing fluoridated water, fluoridated water turned referred to as one in every of 10 greatest public well being achievements of the 20 th century in keeping with the Heart for Illness Management (CDC).

Nevertheless, rates of dental caries have been going down for all western nations, each utilizing fluoridation and never, suggesting that there isn’t a connection between fluoridated water and fewer cavities.

For instance, Sweden doesn’t fluoridate its water and has the identical quantity of dental caries as america. Nobel Prize Winner Dr. Arvid Carlsson argued in opposition to its use in Sweden by saying that topical use of fluoride may fit for dental caries however ingesting fluoride was not a good suggestion, particularly when you think about that the quantity any particular person consumes can range fairly a bit.

Although some earlier research confirmed that fluoride within the water provide may also help cut back dental caries, a 2015 Cochrane evaluate discovered that the newest and complete proof reveals that there’s merely not sufficient proof to assist fluoridating water.

Although fluoride might assist forestall cavities when used topically, there are different (higher) methods to enhance oral well being with out fluoride.

Sources of Fluoride

Fluoridated water is an apparent supply of fluoride however there are numerous others as properly. As a result of there are such a lot of sources of fluoride at the moment, it’s particularly regarding that water provides are “spiked” with fluoride. Listed here are among the main sources of fluoride:

  • Packaged meals and drinks (made with fluoridated water)
  • Pesticides
  • Tea (the plant naturally absorbs fluoride; natural teas are advantageous)
  • Teflon pans
  • Mechanically separated meat (fragments of bone may be left behind)
  • Trade (aluminum, fertilizer, iron, oil refining, semi-conductor, and metal industries)
  • Fluorinated prescription drugs (the fluorine doesn’t normally break down into fluoride, however might)
  • Dental merchandise

After all, there are causes apart from fluoride to keep away from among the issues on this record. For somebody who’s fascinated by pure well being (and avoiding a lot of this stuff already), avoiding fluoride isn’t all that onerous.

How Fluoride Impacts the Thyroid

Although there’s some debate about whether or not fluoride is secure, the proof is fairly clear that it might have an effect on thyroid operate, and for anybody in danger to start with (many women are), fluoride is doubtlessly harmful. Contemplating thyroid illness impacts 20 million Individuals (principally ladies), this is a crucial angle to contemplate.

Within the Nineteen Thirties a product containing fluoride was used to deal with individuals with hyperthyroidism (overactive thyroid). The fluoride poisoned the enzymes within the thyroid gland and slowed down the manufacturing of thyroid hormones. This drug stopped getting used as a result of some individuals’s thyroid glands had been completely broken from its use.

Research present that fluoride impacts the thyroid gland particularly. Research executed in India discovered that youngsters in communities with excessive fluoride consumption had a major lower in thyroid-stimulating hormone (TSH). One other research discovered that individuals with unfluoridated water had been much less prone to develop hypothyroidism.

Fluoride and Iodine

Fluoride can result in thyroid irritation and autoimmune thyroid illness (like Hashimoto’s). Fluoride can also be an endocrine disruptor. Dr. Izabella Wentz explains in this post the way it’s misidentified as iodine within the physique so it’s taken up into the physique and saved in physique tissues the way in which iodine ought to be.

One research discovered that iodine ranges immediately impression how a lot hurt fluoride can do to the thyroid and will assist defend the thyroid from fluoride. However, many individuals who’ve thyroid illness like Hashimoto’s have low ranges of iodine however can’t tolerate supplemental iodine both. In these instances, fluoride is particularly problematic.

How Fluoride Impacts the Skeletal System

Fluoride can also be pretty clearly implicated in bone well being points. Although supporters of fluoride declare that it might assist enhance bone density, proof reveals that the quantity of fluoride performs a vital half in whether or not fluoride helps or hurts bone well being.

This study checked out completely different populations in China with various ranges of naturally occurring fluoride within the water starting from 0.25 mg/L to 7.97 mg/L (as a comparability, locations that add fluoride to water usually add to .7-1 mg/L). What the research discovered was that fractures occurred much less when fluoride ranges had been at about 1 mg/L however extra once they had been on the bottom and highest elements of the vary. Clearly, there’s a advantageous line between useful and dangerous right here.

Skeletal fluorosis is a critical bone illness which causes hardening and thickening of the bones which makes motion tough. It may be confused with a lot of different skeletal points together with arthritis. Skeletal fluorosis is attributable to extreme publicity to fluoride which might occur over time as fluoride can accumulate within the physique. The most recent research reveals that early indicators of skeletal fluorosis can happen with as little as 6 mg of fluoride a day (a lot much less for these with kidney illness).

The Upside

Having good well being to start with, notably regular ranges of nutritional vitamins and minerals, may also help cut back the destructive results of fluoride. One research discovered that standard ranges of calcium helped forestall fluoride-induced bone points in rats. One other discovered that adequate ranges of vitamin D may very well be protecting. Moreover, one other research discovered that magnesium-deficient rats absorbed extra fluoride than rats with regular magnesium ranges and likewise had extra fluoride of their bones and enamel.

What does this imply? That we will do one thing about fluoride publicity by doing among the identical issues which are good for well being general. Optimizing calcium, vitamin D, and magnesium ranges (here are some ideas on that) and consuming a nutrient-dense weight loss program is a superb first step.

Fluoride and the Mind

Fluoride is a confirmed neurotoxin and plenty of prestigious evaluations have dug into the analysis that’s out there on the subject through the years. A 2012 Harvard evaluate discovered that of the 27 research within the evaluate, 26 of them concluded that there’s a relationship between elevated fluoride and diminished IQ.

A 2014 Lancet evaluate paperwork fluoride as a neurotoxin that may very well be dangerous to baby improvement. The evaluate concludes, “The presumption that new chemical compounds and applied sciences are secure till confirmed in any other case is a basic drawback.”

Newer analysis is discovering the identical neurotoxicity issues as earlier research. A 2017 research discovered that fluoride publicity in utero was linked to poorer cognitive efficiency later in life.

Fluoride Impacts Different Components of the Physique

Whereas the results of fluoride on the thyroid, skeletal system, and mind is pretty clear reduce, the science is much less clear on how fluoride impacts different elements of the physique. Listed here are another methods fluoride might trigger hurt:

  • Most cancers – A connection between fluoride and most cancers is a hotly debated subject, in all probability as a result of the analysis is inconclusive and at occasions complicated.
  • Early sexual improvement – One researcher discovered that fluoride accumulates in excessive quantities within the pineal gland (that secretes hormones). A 1997 research discovered that fluoride was related to quicker sexual improvement within the feminine gerbils within the research.
  • Male infertility – Some knowledge recommend {that a} decline in male fertility may very well be related to topical fluoride use. Animal research present concern however extra info is required.

So… Ought to I Be Frightened About Fluoride?

There are a lot of conflicting opinions on whether or not fluoride is secure and whether or not it’s one thing to fret about. (I do know, you hear me say issues like that rather a lot!) Mark Sisson’s opinion on it’s that fluoride isn’t nice however that we must always give attention to bettering well being in different methods first (clear weight loss program, loads of sleep, low stress, and so on) earlier than worrying about filtering fluoride from the water. However, if you’re filtering your water due to any variety of the opposite pollution that may very well be in it, it’s possible you’ll as properly filter out fluoride too.

There’s proof on both facet of the controversy. My private stance is that for individuals with thyroid points (like me) it’s clearly greatest to keep away from fluoride. And since fluoride does include a warning to name the poison management middle instantly if ingested (and after seeing an in depth pal’s scare when her son ingested some fluoride), I purchase unfluoridated toothpaste and don’t preserve fluoride-containing merchandise round our home.

Defend Tooth With out Fluoride

Although fluoride might have a protecting impact on enamel, there are different (higher) methods to maintain enamel wholesome than to smear them with fluoride.

Dental Food regimen

What you eat can impression your oral well being much more than brushing or flossing. Tooth are in a relentless state of remineralization because the saliva within the mouth supplies minerals to the enamel and the cells within the enamel use these minerals to strengthen themselves.

Food regimen can play an enormous half on this course of (and the well being of your enamel). In line with Weston A. Value’s (and others) analysis, a weight loss program wealthy in wholesome fat, nutritional vitamins, and minerals may also help heal and defend oral well being. I’m going into extra element in this post.

Balancing Hormones

Hormones can have an enormous impact on oral well being as they’ll management the acid/alkaline steadiness within the mouth. In addition they have an effect on how properly the physique can heal from or struggle illness. Many people have signs of hormone imbalance and issues like optimizing sleep, stress, weight loss program, and health could make a big difference in hormone health (and oral well being).

Selfmade Toothpaste

Many standard sorts of toothpaste include chemical compounds and synthetic components that may do extra hurt than good! That’s why I began making my own remineralizing toothpaste. I’ve been utilizing it for years and have had no new cavities (and have even healed some that had been ready for a filling).

Fluoride-Free Toothpaste

After all making your individual toothpaste isn’t at all times sensible when life will get busy, so I created my very own line of private care merchandise based mostly on my DIY recipes. It’s referred to as Wellnesse and my Whitening Toothpaste is fluoride-free (however fights micro organism and decay with inexperienced tea leaf extract as a substitute!).

Fluoride: Backside Line

There’s numerous conflicting proof surrounding fluoride and fluoridating water. Some companies and dentists suppose fluoride use has been an enormous well being development. However there’s additionally rising proof that fluoride may be dangerous. I prefer to go on the facet of warning (particularly when there are pure methods to enhance oral well being) and keep away from it. We use a water filter that removes fluoride as properly.

This text was medically reviewed by Dr. Scott Soerries, MD, Household Doctor and Medical Director of SteadyMD. As at all times, this isn’t private medical recommendation and we suggest that you just speak together with your physician.

This text was medically reviewed by Dr. Terry Wahls, a medical professor of medication and medical analysis and has revealed over 60 peer-reviewed scientific abstracts, posters, and papers. As at all times, this isn’t private medical recommendation and we suggest that you just speak together with your physician.

Do you employ fluoride? Why or why not?


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  6. Affect of fluoride on neurological improvement in youngsters. (2014, December 22).
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