Here are some resources for individual case studies documenting people’s amazing results with vitamin D therapy:

(Amazon Affiliate links)


Multiple Sclerosis and (lots of) Vitamin D (2016) by Ana Claudia Domene details her experience over the last decade of successfully treating her aggressive multiple sclerosis with high-dose vitamin D therapy under the supervision of Dr. Cicero Coimbra and completely putting the MS into remission. The book also contains nine other case studies from some of Dr. Coimbra’s other multiple sclerosis patients who have been able to put their MS into remission with high-dose vitamin D therapy and even reverse their neurological damage from MS in two cases.

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The Miraculous Results of Extremely High Dose of the Sunshine Hormone Vitamin D3 (2013) by Jeff T Bowles details his one year experiment of taking very large daily doses of vitamin D ranging from 25,000 IU to 100,000 IU daily with no negative side effects. The book also includes 26 testimonials, mostly from the book’s Amazon reviews, from other people who have had success with high-dose vitamin D therapy for treating chronic pain, depression, chron’s disease, lupus, psoriasis, atrial fibriliation, multiple sclerosis, plantar fasciitis, acne, asthma, obesity, sleep problems, joint pain, autism, cysts, and infertility.

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The Vitamin D Cure (2008) by medical doctor James Dowd contains nine case studies detailing the results of his patients’ successes with vitamin D therapy for chronic pain, sleep problems, arthritis, joint inflammation, chronic fatigue, irritable bowel syndrome, gout, and depression. One of the patients who was obese also lost a significant amount of weight by improving his vitamin D levels.

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The Vitamin D Revolution (2009) by medical doctor Soram Khalsa contains seven case studies detailing the results of his patients’ and his own personal successes with vitamin D therapy for chonic pain, osteopenia, chronic fatiuge, psoriasis, and immune system strengthening.

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More case studies:

Vitamin D Deficiency and Fatigue: An Unusual Presentation (2015)

Conclusion: A 61-year-old man was seeking treatment for severe fatigue and daytime sleepiness. It was found that he had low vitamin D levels and he was subsequently put on a vitamin D supplementation program. After two weeks the patient reported improved energy levels and after three months of Vitamin D supplementation he reported that his fatigue was completely cured.


Core Symptoms of Autism Improved After Vitamin D Supplementation (2015)

Conclusion: Individual case study. A 32-month-year-old boy in China demonstrated severe autism symptoms. A blood test revealed that his vitamin D level was an extremely low 12.5 ng/ml. Following two months of high-dose vitamin D therapy, his vitamin D level was raised to 81 ng/ml and he demonstrated significant improvement in his symptoms.


Vitamin D and Diabetes: Improvement of Glycemic Control with Vitamin D3 Repletion (2008)

Conclusion: In two different case studies of vitamin D-deficient type-2 diabetic women, supplementing with 2,000-3,000 IU of vitamin D daily improved vitamin D levels and blood glucose levels after 6-9 months.


Self-Prescribed High-Dose Vitamin D3: Effects on Biochemical Parameters in Two Men (2008)

Conclusion: Two individual case studies. The first is a man who took 4,000 IU of vitamin D daily for three years and then took 8,000 IU daily for three years. During his intake of 8,000 IU daily his vitamin D levels remained in the safe range and he experienced no negative side effects during this time. The second case study is of a man with multiple sclerosis who increased his daily intake of vitamin D from 8,000 IU daily to 88,000 IU daily. While ingesting 88,000 IU per day he did experience some hypercalcemia and his vitamin D levels reached an incredibly high 450 ng/ml. For two months he then abstained from vitamin D supplementation and the side effects dissipated.


Severe Myopathy Associated with Vitamin D Deficiency in Western New York. (2000)

Conclusion: This documents five case studies where patients with severe myopathy (reduced muscle function) bad enough to need wheelchairs were found to have low vitamin D levels. After undergoing 4-6 weeks of high-dose vitamin D therapy, four of the five patients achieved full mobility and muscle strength restoration, with the fifth also enjoying improved mobility.


Improvement in Glucose Tolerance and Beta-Cell Function in a Patient with Vitamin D Deficiency During Treatment with Vitamin D (1994)

Conclusion: A 65-year-old vitamin D-deficient, hypocalcemic woman with osteomalacia was treated with 2000 IU of vitamin D daily over a 5-month period. Her glucose metabolism and beta cell function were also observed over the course of the treatment. The first month both her glucose tolerance and beta cell function showed immediate improvement and this continued on for the entire five months. “Improvement in beta-cell function and consequently in glucose tolerance is likely to have been due to correction of hypocalcaemia, vitamin D deficiency and secondary hyperparathyroidism.”


Alleviation of Migraines with Therapeutic Vitamin D and Calcium (1994)

Conclusion: “Two postmenopausal migraineurs who developed frequent and excruciating migraine headaches (one following estrogen replacement therapy and the other following a stroke) were treated with combination vitamin D and calcium. Therapeutic replacement with vitamin D and calcium resulted in a dramatic reduction in the frequency and duration of their migraine headaches.”


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