I was asked by a sister to post something in here on Vitamin D deficiency and women so I shall oblige. Recent studies, and experience have shows a prevalence of Vitamin D deficiency in muslim women, and children born to muslim women. There is a study done in 2001 at the University of Chicago that looked at religious causes of Vitamin D deficiency in infants, and concluded as such. Additionally, a retort to this study was published by pediatricians at Wake Forest University, but with similar conclusions. For the Australians in the audience, a 2002 study conducted at the University of New South Wales also looked at muslim women with vitamin D deficiency with rather startling results, and lastly a 1996 study at the University of Malmo, Sweden, specifically highlighted Muslim women as a definite risk group for vitamin D deficiency.
Now before I go on, a little disclaimer. I should let you know that in medicine, sadly, race plays a big role in disease. An African American man with join ache, sickle cell disease, a Jewish smoker with blanched fingers, Buerger's disease, certain diseases are simply attributed to certain religioun groups and certain ethnic groups, thats just the way it is.
The reason quite simply for Vitamin D deficiency in Muslim women is lifestyle in more cases than not. Vitamin D as a fat soluble vitamin that is produced by the reaction of sunlight on skin. The sunlight converts 7-DHC to Vitamin D once it is exposed to certain receptors on the skin. However, there are a few misnomers about sunlight and specifically UV absorption. Contrary to popular beleif, black does not allow UV lights to pass thru. How does this fit in, well, black hijabs, or black chadors, or even black clothing does not allow UV light to pass thru and act on the skin and produce Vitamin D.
The role of Vitamin D in the body is to increase calcium absorption in the body, both in the abdominal region, and by the kidney. This absorbed calcium is then used to enhance bone in the body. Therefore it is easy to see why Vitamin D deficiency in children causes Ricketts, and in adults leads to Osteomalacia, both disorders of bone growth and structure. However, if all it did were to cause bone disorders we could take calcium tablets and be done with it. Sadly, the human body is not as simple. The problem with vitamin D is while it is also produced by UV reaction courtesy of the sun, Vitamin D is also activated in the kidney by the action of Parathyroid Hormone, (PTH) produced by the parathyroid.
Hormone regulation in the body works by a series of checks and balances, an increase in one, leads to a decrease in another and vice versa. Vitamin D produced by the kidney is not enough really for bone health. Therefore if we are sunlight deficient, and deficient in a diet of milk, butter and eggs, our body will compensate by producing PTH. Unfortunately as mentioned before, PTH cannot compensate enough, yet the body will continue churning it out, leading eventually to a state of hyperparathyroidism, and the slim chance of a parathyroid adenoma, aka a tumor, possible cancerous (worst case).
So the lesson is this. Please do get out more into the sunlight, please dont wear exclusively black (a little tricky in Muharram, but we can work around that), and do drink your daily requisite supply of milk, etc etc. I hope this is a good enough summary for the aforementioned sister, if not, please let me know and I shall ammend it and include any potential erratum that may exist. Thank you, stay healthy, ws















