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Methodology Review

The Critical Analysis of Vitamin D Studies and Clinical Trials

Skills: Qualitative Analysis, Peer Review - Clinical Content, Peer Review - Methods
Vitamin D is considered as a vital nutrient for the proper bone health. Some observational studies showed vitamin D deficiency is prevalent in many disease conditions. The results of some epidemiological studies revealed the connection between geographical locations, low sun exposure, low vitamin D levels and skin color with many diseases. Cell culture and animal studies showed the preventive and therapeutic roles of vitamin D in different disease conditions. Many case control studies and randomized clinical trials have been conducted to evaluate the role of vitamin D in different disease conditions. It found that the results of many such studies could not establish beneficial role of vitamin D supplementation in many disease conditions. During the critical evaluation of such studies, it found that many such studies were not designed properly. In this task, the results of different studies showing beneficial effects of vitamin D in different disease conditions and then the short comings in the design of different case control studies and clinical trials will be discussed. This task would be helpful to design future studies in the vitamin D research.

Ideal Applicant

Enthusiastic person with critical evaluation abilities

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Questions & comments


I'm new to task exchange, I would like to participate and have more information about what I would do to help you out if I join this task.

I have completed a few courses about this kind of topics and I'm very interested in getting involved.

You can contact me here or

Cewwwj5rgdqqywicodkk Rafael Guízar - 8 months ago

Dear Colleague,
I do interest in your topic. I am a physician and currently work in research.
I would appreciate it if you could provide me with more details about the intended tasks.
Thank you.

Zp7o53n3dwphhkoxtcmq Ghid Kanaan - 7 months ago

I'm Paola Andrenacci, Clinical Nutritionist specialized in Liver Diseases. I live in Argentina and I'm very interested in participating, vitamin D plays a crucial role in muscle mass (Sarcopenia) and Liver Diseases.
Thank you
My email:

Pjt4dbnujce9kmlppshi Paola Andrenacci - 4 months ago

Dear Colleague.

I am interested in participating in this project.

Dear Colleague.

I I do interest in your topic. I am psychologist in Brazil. My email:

Default profile Débora Aguiar - 3 months ago