Dr. John Cannell
John Jacob Cannell, M.D. (born June 21, 1948, Washington, D.C.) is an American doctor.
Education and career
Dr. Cannell obtained his medical degree from the University of North Carolina, Chapel Hill. Over the years, he has practiced psychiatry and worked as a general practitioner. His interest in Vitamin D began during his time as a psychiatrist in a maximum-security hospital, where he made a significant discovery.
While working at the Atascadero State Hospital in California, Dr. Cannell noticed that patients with lower levels of vitamin D were more susceptible to respiratory infections. This observation led him to research the relationship between vitamin D and the immune system, eventually concluding that vitamin D deficiency is a widespread health issue.
Dr. Cannell believes in the importance of evidence-based medicine and promoting healthy lifestyles. He emphasizes the need for a holistic approach to health, considering factors such as nutrition, exercise, and mental well-being. His work with vitamin D exemplifies this philosophy, as he recognizes the critical role this nutrient plays in various aspects of human health. He was the founder of the globally recognized Vitamin D Council.
Vitamin D - Overview
Vitamin D Overview
Vitamin D Health
Vitamin D Deficiency
Vitamin D Sources
Vitamin D Experts
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What you should know about Vitamin D
Did you know that Vitamin D is essential for more than just bone health? From boosting your immune system to enhancing your mood, this vital nutrient plays a crucial role in your overall well-being. Yet, many people are unaware they're not getting enough. Dive into our latest article to discover the surprising benefits of Vitamin D, how to identify a Vitamin D deficiency, and practical tips to ensure you're meeting your daily needs. Don't miss out on unlocking better health—find out what you need to know about Vitamin D today!
Vitamin D Test
Vitamin D Sources
Vitamin D Deficiency
Vitamin D Levels
Vitamin D and Minerals
Vitamin D and Physiology
Vitamin D and Autism
Vitamin D and Toxicity
Vitamin D and Alzheimer's Disease
Vitamin D and Depression
Vitamin D and Acne
Vitamin D and Vitamin K
Vitamin D and Breast Cancer
Vitamin D and Dental Caries
Vitamin D and Eczema
Vitamin D and Prostate Cancer
Vitamin D for Professionals
Vitamin D and Type II Diabetes
Vitamin D and Osteoporosis
Vitamin D and Respiratory Infections
Vitamin D and Hypersensitivity
Vitamin D and Periodontal Disease
Vitamin D and Multiple Sclerosis
Vitamin D and Hypertension
Vitamin D and Pregnancy
Vitamin D and Parkinson's Disease
Vitamin D and Multiple Myeloma
Vitamin D and Parathyroid Glands
Vitamin D and Rickets
Vitamin D and Coronary Heart Disease (CHD)
Vitamin D and Cognitive Impairment
Vitamin D and Pancreatic Cancer
Vitamin D and Type I Diabetes
Vitamin D and Pharmacology
Vitamin D and Leukemia
Vitamin D and Melanoma
Vitamin D and Anaphylaxis
Vitamin D and COPD
Vitamin D and Asthma
Vitamin D and Fibromyalgia
Vitamin D and IBD
Vitamin D and Pneumonia
Vitamin D and Congestive Heart Failure (CHF)
Vitamin D and Lung Cancer
Vitamin D and Lupus
Vitamin D and Renal Cancer
Vitamin D and Influenza
Vitamin D and Ovarian Cancer
Vitamin D and AIDS (HIV)
Vitamin D and Sepsis
Vitamin D and Colorectal Cancer
Vitamin D and Tuberculosis
Vitamin D and Esophageal Cancer
Vitamin D and Anemia
Vitamin D and Endometrial Cancer
Vitamin D and Cervical Cancer
Vitamin D and Preeclampsia
Vitamin D and Gastric Cancer
Formation of the Vitamin D Council
Establishing a non-profit
In 2003, Dr. Cannell founded the Vitamin D Council as a 501(c)(3) non-profit organization to address the prevalent issue of vitamin D deficiency. He believed that creating a dedicated organization would help educate the public and medical professionals about the importance of maintaining healthy vitamin D levels.
The Vitamin D Council’s mission is to increase public awareness about the benefits of maintaining optimal vitamin D levels, promote research, and provide guidance on supplementation and sun exposure. Additionally, the Council aims to foster collaborations with other organizations and researchers in the field of vitamin D research.
The Vitamin D Council actively collaborates with research institutions, healthcare professionals, and other non-profit organizations. Through these partnerships, the Council supports research, shares knowledge, and works to implement public health initiatives related to vitamin D.
Impact of the Vitamin D Council
Awareness and education
The Vitamin D Council has played a significant role in raising awareness about the importance of vitamin D. The Council provides a wealth of information on its website, including articles, research summaries, and recommended dosages for different age groups. By making this information easily accessible, the Council has helped inform the public and medical professionals about the critical role vitamin D plays in overall health.
Scientific research and publications
The Vitamin D Council actively promotes and supports scientific research on vitamin D, often contributing to groundbreaking studies and publications. Through their commitment to research, the Council has facilitated a better understanding of the various health benefits of vitamin D, leading to more informed recommendations for supplementation and sun exposure.
Public health initiatives
As a part of its mission to improve public health, the Vitamin D Council collaborates with other organizations to create and implement initiatives that address vitamin D deficiency. These initiatives include educational campaigns, advocacy for improved food fortification, and the development of resources for healthcare professionals to better diagnose and treat vitamin D deficiency.
Dr. Cannell’s influence on the community
Dr. Cannell’s work with the Vitamin D Council has sparked numerous debates and discussions within the medical community, contributing to a more comprehensive understanding of vitamin D’s role in human health. His research and advocacy have also led to increased recognition of the importance of adequate vitamin D levels and the need for evidence-based recommendations.
Dr. Cannell has been a strong advocate for evidence-based medicine throughout his career. His work with the Vitamin D Council emphasizes the importance of rigorous research and scientific inquiry to develop accurate guidelines for supplementation and sun exposure. This approach has led to more effective strategies for addressing vitamin D deficiency and promoting overall health.
Dr. John Cannell’s work with the Vitamin D Council has had a significant impact on the medical community’s understanding of vitamin D and its importance to human health. Through his dedication to research, education, and public health initiatives, Dr. Cannell has helped raise awareness about vitamin D deficiency and provided valuable guidance on maintaining optimal vitamin D levels. His influence on the medical community continues to shape the way healthcare professionals approach the diagnosis and treatment of vitamin D deficiency.
Peer-reviewed papers
- Saad K, Abdel-Rahman AA, Elserogy YM, Al-Atram AA, Cannell JJ, Bjørklund G, Abdel-Reheim MK, Othman HA, El-Houfey AA, Abd El-Aziz NH, Abd El-Baseer KA, Ahmed AE, Ali AM. Vitamin D status in autism spectrum disorders and the efficacy of vitamin D supplementation in autistic children. Nutr Neurosci. 2016 Oct;19(8):346-351. PubMed PMID: 25876214.
- Cannell JJ, Holick MF. Multiple unexplained fractures in infants and child physical abuse. J Steroid Biochem Mol Biol. 2016 Sep 15. pii: S0960-0760(16)30248-5. doi: 10.1016/j.jsbmb.2016.09.012. [Epub ahead of print] Review. PubMed PMID: 27641737.
- Grant WB, Wimalawansa SJ, Holick MF, Cannell JJ, Pludowski P, Lappe JM, Pittaway M, May P. Emphasizing the health benefits of vitamin D for those with neurodevelopmental disorders and intellectual disabilities. Nutrients. 2015 Feb 27;7(3):1538-64. doi: 10.3390/nu7031538. Review. PubMed PMID: 25734565; PubMed Central PMCID: PMC4377865.
- Cannell JJ, Grant WB, Holick MF. Vitamin D and inflammation. Dermatoendocrinol. 2015 Jan 29;6(1):e983401. doi: 10.4161/19381980.2014.983401. Review. PubMed PMID: 26413186; PubMed Central PMCID: PMC4580066.
- Cannell JJ. Paracetamol, oxidative stress, vitamin D and autism spectrum disorders. Int J Epidemiol. 2014 Jun;43(3):974-5. doi: 10.1093/ije/dyu004. PubMed PMID: 24518930.
- Cannell JJ. Where is the missing 40 μg/d of vitamin D? J Nutr. 2013 Sep;143(9):1520. doi: 10.3945/jn.113.178780. PubMed PMID: 23964015.
- Cannell JJ. Autism, will vitamin D treat core symptoms? Med Hypotheses. 2013 Aug;81(2):195-8. doi: 10.1016/j.mehy.2013.05.004. PubMed PMID: 23725905.
- Grant WB, Cannell JJ. Autism prevalence in the United States with respect to solar UV-B doses: An ecological study. Dermatoendocrinol. 2013 Jan 1;5(1):159-64. doi: 10.4161/derm.22942. PubMed PMID: 24494049; PubMed Central PMCID: PMC3897584.
- Cannell JJ, Grant WB. What is the role of vitamin D in autism? Dermatoendocrinol. 2013 Jan 1;5(1):199-204. doi: 10.4161/derm.24356. PubMed PMID: 24494055; PubMed Central PMCID: PMC3897590.
- Cannell JJ. The difference between a prophet and a madman. Br J Nutr. 2011 Nov;106(9):1317-8. doi: 10.1017/S0007114511002443. PubMed PMID: 21736783.
- Cannell J. Era or error? Public Health Nutr. 2011 Apr;14(4):743. doi: 10.1017/S1368980011000231. PubMed PMID: 21435284.
- Grant WB, Cannell JJ. Pregnant women are at increased risk for severe A influenza because they have low serum 25-hydroxyvitamin D levels. Crit Care Med. 2010 Sep;38(9):1921; author reply 1921-2. doi: 10.1097/CCM.0b013e3181e28603. PubMed PMID: 20724898.
- Cannell JJ. On the aetiology of autism. Acta Paediatr. 2010 Aug;99(8):1128-30. doi: 10.1111/j.1651-2227.2010.01883.x. PubMed PMID: 20491697; PubMed Central PMCID: PMC2913107.
- Cannell J. Vitamin D “advertisement”. Am J Obstet Gynecol. 2010 May;202(5):e9-10; author reply e10-1. doi: 10.1016/j.ajog.2009.11.011. PubMed PMID: 20042170.
- Evatt ML, DeLong MR, Grant WB, Cannell JJ, Tangpricha V. Autism spectrum disorders following in utero exposure to antiepileptic drugs. Neurology. 2009 Sep 22;73(12):997. doi: 10.1212/WNL.0b013e3181af0b95. PubMed PMID: 19770480.
- Cannell JJ, Zasloff M, Garland CF, Scragg R, Giovannucci E. Commentary. On the epidemiology of influenza: reply to Radonovich et al. Virol J. 2009 Aug 11;6:121. doi: 10.1186/1743-422X-6-121. PubMed PMID: 19671177; PubMed Central PMCID: PMC2729747.
- Cannell JJ, Hollis BW, Sorenson MB, Taft TN, Anderson JJ. Athletic performance and vitamin D. Med Sci Sports Exerc. 2009 May;41(5):1102-10. doi: 10.1249/MSS.0b013e3181930c2b. Review. PubMed PMID: 19346976.
- Cannell JJ. Discovering the obvious, damaging the defenseless. Nutr Res. 2008 Nov;28(11):809; author reply 809-10. doi: 10.1016/j.nutres.2008.09.008. PubMed PMID: 19083492; PubMed Central PMCID: PMC2598748.
- Cannell JJ, Vieth R, Willett W, Zasloff M, Hathcock JN, White JH, Tanumihardjo SA, Larson-Meyer DE, Bischoff-Ferrari HA, Lamberg-Allardt CJ, Lappe JM, Norman AW, Zittermann A, Whiting SJ, Grant WB, Hollis BW, Giovannucci E. Cod liver oil, vitamin A toxicity, frequent respiratory infections, and the vitamin D deficiency epidemic. Ann Otol Rhinol Laryngol. 2008 Nov;117(11):864-70. Review. PubMed PMID: 19102134.
- Cannell JJ, Hollis BW. Use of vitamin D in clinical practice. Altern Med Rev. 2008 Mar;13(1):6-20. Review. PubMed PMID: 18377099.
- Cannell JJ, Zasloff M, Garland CF, Scragg R, Giovannucci E. On the epidemiology of influenza. Virol J. 2008 Feb 25;5:29. doi: 10.1186/1743-422X-5-29. Review. PubMed PMID: 18298852; PubMed Central PMCID: PMC2279112.
- Cannell JJ. Autism and vitamin D. Med Hypotheses. 2008;70(4):750-9. PubMed PMID: 17920208.
- Cannell JJ, Hollis BW, Zasloff M, Heaney RP. Diagnosis and treatment of vitamin D deficiency. Expert Opin Pharmacother. 2008 Jan;9(1):107-18. PubMed PMID: 18076342.
- Erb S, John R, Cannell J. Vitamin D. Research suggests broader health role. Adv Nurse Pract. 2007 May;15(5):77-8, 80, 95. PubMed PMID: 20000217.
- Cannell JJ, Vieth R, Umhau JC, Holick MF, Grant WB, Madronich S, Garland CF, Giovannucci E. Epidemic influenza and vitamin D. Epidemiol Infect. 2006 Dec;134(6):1129-40. Review. PubMed PMID: 16959053; PubMed Central PMCID: PMC2870528.
- Vasquez A, Cannell J. Calcium and vitamin D in preventing fractures: data are not sufficient to show inefficacy. BMJ. 2005 Jul 9;331(7508):108-9; author reply 109. PubMed PMID: 16002891; PubMed Central PMCID: PMC558659.
- Muanza DN, Vasquez A, Cannell J, Grant WP. Isoflavones and postmenopausal women. JAMA. 2004 Nov 17;292(19):2337; author reply 2337. PubMed PMID: 15547158.
- Vasquez A, Manso G, Cannell J. The clinical importance of vitamin D (cholecalciferol): a paradigm shift with implications for all healthcare providers. Altern Ther Health Med. 2004 Sep-Oct;10(5):28-36; quiz 37, 94. Review. PubMed PMID: 15478784.
- Cannell J, Hudson JI, Pope HG Jr. Standards for informed consent in recovered memory therapy. J Am Acad Psychiatry Law. 2001;29(2):138-47. Review. PubMed PMID: 11471779.
- Beahrs JO, Cannell JJ, Gutheil TG. Delayed traumatic recall in adults: a synthesis with legal, clinical, and forensic recommendations. Bull Am Acad Psychiatry Law. 1996;24(1):45-55. Review. PubMed PMID: 8891321.
- Grant, W.B. and Cannell, J. J. Autism prevalence in the United States with respect to solar UV-B doses: An ecological study. Dermato-Endocrinology 4:4, 2012.
- Cannell, J. J. On the aetiology of autism. Acta Pædiatrica, 2010.
- Cannell, J. J., Zasloff, M., Garland, C., Scragg, R. and Giovannucci, E. On the epidemiology of influenza: reply to Radonovich et al. Virology Journal Volume 6, No. 121, 2009.
- Cannell, J. J., Vieth R., Willett W., Zasloff, M., Hathcock, J., White, J. H., Tanumihardjo, S. A., Larson-Meyer E., Bischoff-Ferrari, H. A., Lamberg-Allardt, C. J., Lappe, J. M., Norman, A. W., Zittermann, A., Whiting S. J., Grant, W.B., Hollis, B. W. and Giovannucci, E. Cod Liver Oil, Vitamin A Toxicity, Frequent Respiratory, Infections, and the Vitamin D Deficiency Epidemic. Annals of Otology, Rhinology & Laryngology Volume 117, No. 11. 2008.
- Campbell BJ, Reinhold JG, Cannell JJ, Nourmand I. The effects of prolonged consumption of wholemeal bread upon metabolism of calcium, magnesium, zinc and phosphorus of two young American adults. Pahlavi Med J. 1976 Jan;7(1):1-17. PubMed PMID: 1264463.
Books
- Cannell JJ. Autism Causes Prevention and Treatment; Vitamin D deficiency and the explosive rise of autism spectrum disorder. 1st ed. Van Beusekom M, editor. North Branch, MN 55056: Sunrise River Press; 2015.
- Cannell, J. J. Athlete’s Edge: Faster, Quicker, Stronger with Vitamin D.Here and Now Books, 2011.
FAQs
- What is the Vitamin D Council? The Vitamin D Council is a 501(c)(3) non-profit organization founded by Dr. John Cannell in 2003, focused on raising awareness about the importance of vitamin D and providing guidance on supplementation and sun exposure.
- What led Dr. Cannell to become interested in vitamin D? Dr. Cannell’s interest in vitamin D began while working as a psychiatrist at a maximum-security hospital, where he noticed that patients with lower levels of vitamin D were more susceptible to respiratory infections.
- What are the main goals of the Vitamin D Council? The Vitamin D Council’s goals include increasing public awareness about the benefits of maintaining optimal vitamin D levels, promoting research on vitamin D, providing guidance on supplementation and sun exposure, and fostering collaborations with other organizations and researchers.
- How has Dr. Cannell influenced the medical community? Dr. Cannell’s work with the Vitamin D Council has sparked debates and discussions within the medical community, emphasizing the importance of evidence-based medicine, and leading to increased recognition of the need for adequate vitamin D levels.
- What kind of public health initiatives does the Vitamin D Council support? The Vitamin D Council supports public health initiatives such as educational campaigns, advocacy for improved food fortification, and the development of resources for healthcare professionals to better diagnose and treat vitamin D deficiency.