Fluoride & the Pineal Gland<\/span><\/strong><\/h2>\n\nHEALTH EFFECTS:<\/strong><\/font> Fluoride & the Pineal Gland<\/font><\/font><\/p>\n<\/div>\n\n<\/a>Summation <\/font><\/strong><\/span>– <\/strong>Fluoride & Pineal Gland: <\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n\n\n\nUp until the 1990s, no research had ever been conducted to determine the impact of fluoride on the pineal gland – a small gland located between the two hemispheres of the brain that regulates the production of the hormone melatonin. Melatonin is a hormone that helps regulate the onset of puberty and helps protect the body from cell damage caused by free radicals. <\/font><\/p>\n![\"content_img.11409.img.jpg\"](\"https:\/\/sandonspaldingstaging.com\/DirtDr\/wp-content\/uploads\/2025\/12\/content_img.11409.img.jpg\")
<\/font><\/p>\n\nIt is now known – thanks to the meticulous research of <\/font>Dr. Jennifer Luke<\/font><\/a> from the University of Surrey in England – that the pineal gland is the <\/font>primary target of fluoride accumulation within the body.<\/font><\/a> <\/font><\/p>\nThe <\/font>soft tissue<\/font><\/a> of the adult pineal gland contains more fluoride than any other soft tissue in the body – a level of fluoride (~300 ppm) capable of inhibiting enzymes.<\/font><\/p>\nThe pineal gland also contains <\/font>hard tissue<\/font><\/a> (hyroxyapatite crystals), and this hard tissue accumulates more fluoride (up to 21,000 ppm) than any other hard tissue in the body (e.g. teeth and bone).<\/font><\/p>\nAfter finding that the pineal gland is a major target for fluoride accumulation in humans, Dr. Luke conducted <\/font>animal experiments<\/font><\/a> to determine if the accumulated fluoride could impact the functioning of the gland – particulalry the gland’s regulation of melatonin.<\/font><\/p>\nLuke found that animals treated with fluoride had lower levels of circulating melatonin, as reflected by reduced levels of melatonin metabolites in the animals’ urine. This reduced level of circulating melatonin was accompanied – as might be expected – by an <\/font>earlier onset of puberty<\/font><\/a> in the fluoride-treated female animals. <\/font><\/p>\n<\/blockquote>\nLuke summarized her human and animal findings as follows:<\/font><\/p>\n<\/div>\n<\/div>\n\n\n\n“In conclusion, the human pineal gland contains the highest concentration of fluoride in the body. Fluoride is associated with depressed pineal melatonin synthesis by prepubertal gerbils and an accelerated onset of sexual maturation in the female gerbil. The results strengthen the hypothesis that the pineal has a role in the timing of the onset of puberty. Whether or not fluoride interferes with pineal function in humans requires further investigation.”<\/font><\/p>\n<\/div>\n<\/div>\n<\/blockquote>\n<\/blockquote>\n\nOnline Papers <\/strong><\/span>– <\/strong>Fluoride & the Pineal Gland: <\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n<\/blockquote>\n<\/blockquote>\n\n\nArticles of Interest<\/strong><\/span> – <\/strong>Fluoride & the Pineal Gland: <\/strong><\/span><\/span><\/strong><\/font><\/font><\/p>\n<\/div>\n<\/div>\n<\/blockquote>\n\n\n\n\u201cThe single animal study of pineal function indicates that fluoride exposure results in altered melatonin production and altered timing of sexual maturity.<\/span> Whether fluoride affects pineal function in humans remains to be demonstrated. The two studies of menarcheal age in humans show the possibility of earlier menarche in some individuals exposed to fluoride, but no definitive statement can be made. Recent information on the role of the pineal organ in humans suggests that any agent that affects pineal function could affect human health in a variety of ways, including effects on sexual maturation, calcium metabolism, parathyroid function, postmenopausal osteoporosis, cancer, and psychiatric disease.\u201d <\/span>
SOURCE: National Research Council. (2006). Fluoride in Drinking Water: A Scientific Review of EPA’s Standards<\/font><\/a>. National Academies Press, Washington D.C.<\/span> p221-22.<\/span><\/font><\/font><\/p>\n“In conclusion,<\/span> the human pineal gland contains the highest concentration of fluoride in the body. <\/span>Fluoride is associated with<\/span> depressed pineal melatonin synthesis<\/span> by prepubertal gerbils and<\/span> an accelerated onset of sexual maturation <\/span>in the female gerbil. <\/span>The results strengthen the hypothesis that the pineal has a role in the timing of the onset of puberty. Whether or not fluoride interferes with pineal function in humans requires further investigation.”
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Th<\/a>esis. University of Surrey, Guildford. p. 177.<\/span> <\/font><\/font><\/p>\n<\/div>\n<\/div>\n<\/blockquote>\n\nFluoride & Pineal Gland <\/strong><\/span>– <\/strong>Never Studied before 1990s:<\/strong><\/span><\/strong><\/span> <\/strong><\/strong><\/strong><\/font><\/font><\/p>\n<\/div>\n\n\n“It is remarkable that the pineal gland has never been analysed separately for F because it has several features which suggest that it could accumulate F.<\/span> It has the highest calcium concentration of any normal soft tissue in the body because it calcifies physiologically in the form of hydroxyapatite (HA). It has a high metabolic activity coupled with a very profuse blood supply: two factors favouring the deposition of F in mineralizing tissues. The fact that the pineal is outside the blood-brain barrier suggests that pineal HA could sequester F from the bloodstream if it has the same strong affinity for F as HA in the other mineralizing tissues. The intensity of the toxic effects of most drugs depends upon their concentration at the site of action. The mineralizing tissues (bone and teeth) accumulate high concentrations of F and are the first to show toxic reactions to F. Hence, their reactions to F have been especially well studied. If F accumulates in the pineal gland, then this points to a gap in our knowledge about whether or not F affects pineal physiology. It was the lack of knowledge in this area that prompted my study.” <\/span>
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. The<\/a>sis. University of Surrey, Guildford. p. 1-2.<\/span> <\/font><\/font><\/div>\n<\/div>\n<\/blockquote>\n\nFluoride & Pineal Gland <\/strong><\/span>–<\/strong> Accumulation of Fluoride in Soft Tissue<\/u> of Pineal Gland: <\/span><\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n\n\n“After half a century of the prophylactic use of fluorides in dentistry, we now know that fluoride readily accumulates in the human pineal gland. In fact, the aged pineal contains more fluoride than any other normal soft tissue<\/span>. The concentration of fluoride in the pineal was significantly higher (p SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. <\/a>Thesis. University of Surrey, Guildford. p. 167.<\/span> <\/font><\/div>\n<\/div>\n<\/blockquote>\nFluoride & Pineal Gland <\/strong><\/span><\/strong><\/span>–<\/strong> Accumulation of Fluoride in Calcified Tissue<\/u> of Pineal Gland:<\/strong><\/span><\/font><\/font><\/strong><\/p>\n\n<\/span><\/font><\/font><\/strong>“In terms of mineralized tissue, the mean fluoride concentration in the pineal calcification was equivalent to that in severely fluorosed bone and more than four times higher than in corresponding bone ash, i.e., 8,900 \u00b1 7,700 vs. 2,040 \u00b1 1,100 mg\/kg, respectively. <\/span>The calcification in two of the 11 pineals analysed in this study contained extremely high levels of fluoride: 21,800 and 20,500 mg\/kg.”
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. <\/a>Thesis. University of Surrey, Guildford. p. 167.<\/span> <\/font><\/p>\n<\/blockquote>\nFluoride & Pineal Gland <\/strong><\/span>–<\/strong> Analagous to Dental Fluorosis? <\/strong><\/span><\/font><\/font><\/strong><\/p>\n\n\n\n“Fluoride is now introduced at a much earlier stage of human development than ever before and consequently alters the normal fluoride-pharmacokinetics in infants. But can one dramatically increase the normal fluoride-intake to infants and get away with it? The safety of the use of fluorides ultimately rests on the assumption that the developing enamel organ<\/font><\/a> is most sensitive to the toxic effects of fluoride. The results from this study suggest that the pinealocytes may be as susceptible to fluoride as the developing enamel organ.”<\/span>
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Thesis. University of Surrey, Guildford. p. 176.<\/span><\/font><\/font><\/p>\n<\/div>\n<\/div>\n\n“Alongside the calcification in the <\/font>developing enamel organ<\/font><\/a>, calcification is also occurring in the child’s pineal. It is a normal physiological process. A complex series of enzymatic reactions within the pinealocytes converts the essential amino acid, tryptophan, to a whole family of indoles. The main pineal hormone is melatonin (MT)… If F accumulates in the pineal gland during early childhood, it could affect pineal indole metabolism in much the same way that high local concentrations of F in enamel organ and bone affect the metabolism of ameloblasts and osteoblasts.”<\/span>
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Thesis. University of Surrey, Guildford. p. 5.<\/span><\/font><\/font><\/p>\n<\/div>\n“Any adverse physiological effects of fluoride depend upon the concentration at various tissue sites. Can pinealocytes function normally in close proximity to high concentrations of fluoride? <\/span>One would predict that a high local fluoride concentration would affect pinealocyte function in an analogous way that a high local fluoride concentration affects: i) bone cells, since histological changes have been observed in bone with 2,000 mg F\/kg (Baud et al, 1978); ii) ameloblasts, since <\/font>dental fluorosis<\/font><\/a> develops following fluoride concentrations of 0.2 mg F\/kg in the developing enamel organ (Bawden et al, 1992). The consequences are disturbances in the functions of bone and enamel, i.e., changes in structure (poorly mineralized bone and enamel). If the pineal accumulates fluoride at an earlier age than in previous decades, one would anticipate that a high local concentration of fluoride within the pineal would affect the functions of the pineal, i.e., the synthesis of hormonal products, specifically melatonin… The controlled animal study carried out in this study produce compelling evidence that fluoride inhibits pineal melatonin output during pubertal development in the gerbil.”<\/span>
SOURCE: Luke J<\/a>. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Thesis. University of Surrey, Guildford. p. 168-169.<\/span> <\/font><\/div>\n<\/blockquote>\n\nFluoride & Pineal Gland <\/strong><\/span>–<\/strong> Earlier Puberty in Animals: <\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n\n\n“The section on the effects of fluoride on the physiological signs of sexual maturity in the gerbil was a preliminary, pilot study. There were not enough subjects to make any firm conclusions so an interpretation of the data is conjectural. However, the results do suggest that the HF (High-Fluoride) females had an accelerated onset of puberty as judged by several indices of pubertal development in rodents<\/span>. At 7 weeks, the HF females were significantly heavier than the LF females (p SOURCE: Luke J. (1997). <\/span>
HEALTH EFFECTS:<\/strong><\/font> Fluoride & the Pineal Gland<\/font><\/font><\/p>\n<\/div>\n <\/a>Summation <\/font><\/strong><\/span>– <\/strong>Fluoride & Pineal Gland: <\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n Up until the 1990s, no research had ever been conducted to determine the impact of fluoride on the pineal gland – a small gland located between the two hemispheres of the brain that regulates the production of the hormone melatonin. Melatonin is a hormone that helps regulate the onset of puberty and helps protect the body from cell damage caused by free radicals. <\/font><\/p>\n It is now known – thanks to the meticulous research of <\/font>Dr. Jennifer Luke<\/font><\/a> from the University of Surrey in England – that the pineal gland is the <\/font>primary target of fluoride accumulation within the body.<\/font><\/a> <\/font><\/p>\n The <\/font>soft tissue<\/font><\/a> of the adult pineal gland contains more fluoride than any other soft tissue in the body – a level of fluoride (~300 ppm) capable of inhibiting enzymes.<\/font><\/p>\n The pineal gland also contains <\/font>hard tissue<\/font><\/a> (hyroxyapatite crystals), and this hard tissue accumulates more fluoride (up to 21,000 ppm) than any other hard tissue in the body (e.g. teeth and bone).<\/font><\/p>\n After finding that the pineal gland is a major target for fluoride accumulation in humans, Dr. Luke conducted <\/font>animal experiments<\/font><\/a> to determine if the accumulated fluoride could impact the functioning of the gland – particulalry the gland’s regulation of melatonin.<\/font><\/p>\n Luke found that animals treated with fluoride had lower levels of circulating melatonin, as reflected by reduced levels of melatonin metabolites in the animals’ urine. This reduced level of circulating melatonin was accompanied – as might be expected – by an <\/font>earlier onset of puberty<\/font><\/a> in the fluoride-treated female animals. <\/font><\/p>\n<\/blockquote>\n Luke summarized her human and animal findings as follows:<\/font><\/p>\n<\/div>\n<\/div>\n “In conclusion, the human pineal gland contains the highest concentration of fluoride in the body. Fluoride is associated with depressed pineal melatonin synthesis by prepubertal gerbils and an accelerated onset of sexual maturation in the female gerbil. The results strengthen the hypothesis that the pineal has a role in the timing of the onset of puberty. Whether or not fluoride interferes with pineal function in humans requires further investigation.”<\/font><\/p>\n<\/div>\n<\/div>\n<\/blockquote>\n<\/blockquote>\n Online Papers <\/strong><\/span>– <\/strong>Fluoride & the Pineal Gland: <\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n Articles of Interest<\/strong><\/span> – <\/strong>Fluoride & the Pineal Gland: <\/strong><\/span><\/span><\/strong><\/font><\/font><\/p>\n<\/div>\n<\/div>\n \u201cThe single animal study of pineal function indicates that fluoride exposure results in altered melatonin production and altered timing of sexual maturity.<\/span> Whether fluoride affects pineal function in humans remains to be demonstrated. The two studies of menarcheal age in humans show the possibility of earlier menarche in some individuals exposed to fluoride, but no definitive statement can be made. Recent information on the role of the pineal organ in humans suggests that any agent that affects pineal function could affect human health in a variety of ways, including effects on sexual maturation, calcium metabolism, parathyroid function, postmenopausal osteoporosis, cancer, and psychiatric disease.\u201d <\/span> “In conclusion,<\/span> the human pineal gland contains the highest concentration of fluoride in the body. <\/span>Fluoride is associated with<\/span> depressed pineal melatonin synthesis<\/span> by prepubertal gerbils and<\/span> an accelerated onset of sexual maturation <\/span>in the female gerbil. <\/span>The results strengthen the hypothesis that the pineal has a role in the timing of the onset of puberty. Whether or not fluoride interferes with pineal function in humans requires further investigation.” Fluoride & Pineal Gland <\/strong><\/span>– <\/strong>Never Studied before 1990s:<\/strong><\/span><\/strong><\/span> <\/strong><\/strong><\/strong><\/font><\/font><\/p>\n<\/div>\n Fluoride & Pineal Gland <\/strong><\/span>–<\/strong> Accumulation of Fluoride in Soft Tissue<\/u> of Pineal Gland: <\/span><\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n Fluoride & Pineal Gland <\/strong><\/span><\/strong><\/span>–<\/strong> Accumulation of Fluoride in Calcified Tissue<\/u> of Pineal Gland:<\/strong><\/span><\/font><\/font><\/strong><\/p>\n <\/span><\/font><\/font><\/strong>“In terms of mineralized tissue, the mean fluoride concentration in the pineal calcification was equivalent to that in severely fluorosed bone and more than four times higher than in corresponding bone ash, i.e., 8,900 \u00b1 7,700 vs. 2,040 \u00b1 1,100 mg\/kg, respectively. <\/span>The calcification in two of the 11 pineals analysed in this study contained extremely high levels of fluoride: 21,800 and 20,500 mg\/kg.” Fluoride & Pineal Gland <\/strong><\/span>–<\/strong> Analagous to Dental Fluorosis? <\/strong><\/span><\/font><\/font><\/strong><\/p>\n “Fluoride is now introduced at a much earlier stage of human development than ever before and consequently alters the normal fluoride-pharmacokinetics in infants. But can one dramatically increase the normal fluoride-intake to infants and get away with it? The safety of the use of fluorides ultimately rests on the assumption that the developing enamel organ<\/font><\/a> is most sensitive to the toxic effects of fluoride. The results from this study suggest that the pinealocytes may be as susceptible to fluoride as the developing enamel organ.”<\/span> “Alongside the calcification in the <\/font>developing enamel organ<\/font><\/a>, calcification is also occurring in the child’s pineal. It is a normal physiological process. A complex series of enzymatic reactions within the pinealocytes converts the essential amino acid, tryptophan, to a whole family of indoles. The main pineal hormone is melatonin (MT)… If F accumulates in the pineal gland during early childhood, it could affect pineal indole metabolism in much the same way that high local concentrations of F in enamel organ and bone affect the metabolism of ameloblasts and osteoblasts.”<\/span> Fluoride & Pineal Gland <\/strong><\/span>–<\/strong> Earlier Puberty in Animals: <\/strong><\/span><\/font><\/font><\/strong><\/p>\n<\/div>\n\n
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SOURCE: National Research Council. (2006). Fluoride in Drinking Water: A Scientific Review of EPA’s Standards<\/font><\/a>. National Academies Press, Washington D.C.<\/span> p221-22.<\/span><\/font><\/font><\/p>\n
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Th<\/a>esis. University of Surrey, Guildford. p. 177.<\/span> <\/font><\/font><\/p>\n<\/div>\n<\/div>\n<\/blockquote>\n\n
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. The<\/a>sis. University of Surrey, Guildford. p. 1-2.<\/span> <\/font><\/font><\/div>\n<\/div>\n<\/blockquote>\n\n
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SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. <\/a>Thesis. University of Surrey, Guildford. p. 167.<\/span> <\/font><\/p>\n<\/blockquote>\n\n
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Thesis. University of Surrey, Guildford. p. 176.<\/span><\/font><\/font><\/p>\n<\/div>\n<\/div>\n
SOURCE: Luke J. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Thesis. University of Surrey, Guildford. p. 5.<\/span><\/font><\/font><\/p>\n<\/div>\n
SOURCE: Luke J<\/a>. (1997). <\/span>The Effect of Fluoride on the Physiology of the Pineal Gland<\/em><\/span>. Ph.D. Thesis. University of Surrey, Guildford. p. 168-169.<\/span> <\/font><\/div>\n<\/blockquote>\n\n