New Research Links Vitamin D Deficiencies to Autism

Back in 2009,  Dr. John J. Cannell’s research on Vitamin D Deficiency being related to Autism and other brain dysfunctions was greatly discussed and even challenged.

Nearly 3 years later, there have been many advancements in the Autism field, especially in the area of researching the potential causes. Vitamin D Deficiency isn’t just expected in Autism, but in conditions such as cardiovascular disease and even cancer!

The number of children and adults being diagnosed with Autism is no doubt on the rise. Some like to argue that it is due to physicians being more aggressive in their diagnosis, but most agree that the increase in cases is very real, meaning the issues that are causing this disorder are very real and are still needing to be addressed.

Not long ago, a paper was written that called for an immediate and urgent request for research into Vitamin D Deficiencies role in the Autism epidemic.

So, if one of the many answers to why Autism symptoms are so severe at times could be because of Vitamin D deficiencies, why aren’t parents just administering Vitamin D Supplements or utilizing nature’s natural Vitamin D source; the sun?

The problem arises when pediatricians are consulted regarding the increase of Vitamin D to a child’s system. Many of them argue that the recommended dosage by specialists is too high, and then parents of the child decline to take part in the program. Dr. Cannell says himself that they do not go against Doctor’s orders and want to “work along with pediatricians whenever possible. ”

There have been wonderful results reported from adjusting the vitamin D levels in Autistic children. Parents have reported that it has helped in behavioral issues such as tantrums, and even for sleeping. Shyness, eye contact, and speech have also been reported to have improved utilizing the Vitamin D treatment method.

Parents, have you been recommended to use Vitamin D Therapy? Did you take part in it? What were the results?



  1. Mary Robertson says

    My daughter has taken Vitamin D for some time. I haven’t seen any change due to this – but I’m open to the theory that it helps other kids. It’s recently been recommended that we try Vitamin D/K combined.

  2. Teresa says

    My autistic child was diagnosed vitamin D deficient at a level of 24.
    My husband and I are both vitamin D deficient, our levels were 6 and 9 and are up to 31. We take 5,000 units a day od D3 after taking 50,000 units of D2 for 8 weeks. Jennifer dose is 2,000 units a day but is this right? She is 15 and 5 ‘ 6″ and 110 lbs.

  3. admin says

    Hi Mary, it is true that for some kids there would be some visible positive effects but for others you need to take a look at the whole health picture. Autism rarely is caused by jut one thing and for this reason it is a bunch of puzzles. Vitamin K is mostly produced by your good gut bacteria and from your diet too. The concept here is that most autistic kids have poor gut health, and hence, the need to do a combo vitamin D and K.

  4. admin says

    Hi Marsha, since we are promoting the same cause then I would also appreciate that you endorse me as well on your website.

  5. admin says

    Hi Teresa, like I always said to my patient especially from the Midwest of USD that there is no possibility to maintain an optimal level for as long as they live here. My general advice is like this: adults take 3000 IU per day for all seasons except winter do 5000 IU but the child should use 3000 IU here and 1000 for the rest of the seasons (spring, summer, autumn). You cpuld use high dosage like 50,000 IU per day for three days if you are sick.

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