Author: Dr R Padmakumar et al.<\/p>\n\n\n\n
Contents<\/strong><\/p>\n\n\n\n Vitamin D is a fat soluble vitamin and produced by skin (from cholesterol) when exposed to ultraviolet B radiation (\u201csunshine vitamin\u201d) and also obtained from dietary sources, including supplements. Most important components, vitamin D3 (cholecalciferol) comes from fortified foods, animal foods (fish, eggs and liver) and can be made internally when skin is exposed to ultraviolet (uv) radiation from the sun and vitamin D2 (ergocalciferol)<\/p>\n\n\n\n Excessive intakes of vitamin D can lead to high levels of calcium (hypercalcemia). The symptoms of this are weakness, confusion, constipation, loss of appetite and development of painful calcium deposits. To avoid this, advice to keep the supplement intake below the tolerable upper limits.<\/p>\n\n\n\n The need for vitamin D goes way beyond preventing and treating rickets. Various researchers have claimed that vitamin D benefits are associated with the following:<\/p>\n\n\n\n In vitamin D deficiency due to reduced oral intake or reduced sun exposure ,Vitamin D level and calcium level will be low with normal parathyroid function. Calcium level will be high and vitamin D will be low when primary hyperparathyroidism exists.<\/p>\n\n\n\n Research has begun to show a relationship between BMI and vitamin D deficiency. A study done on 2,187 overweight and obese subjects, found that those with a BMI <\/a>above 40 had 18% lower serum vitamin D levels than those with a BMI under 40. Some possible reasons for this are lower intakes of vitamin D , less exposure to sunlight (uv) radiation and a higher distribution volume of vitamin D . Even with exposure to sunlight, there remains a risk for deficiency.<\/p>\n\n\n\n Morbid obese patients have a higher incidence of high PTH and low vitamin D even before surgery compared with normal individuals.<\/p>\n\n\n\n In gastric bypass: low calcium absorption due to bypassed duodenum and jejunum may be the cause.<\/p>\n\n\n\n In sleeve gastrectomy<\/a> the vitamin D and calcium level are maintained within normal limits compared to bypass surgery<\/a>.<\/p>\n\n\n\n Bariatric Surgery deals with the study of obesity, the causes, prevention and\n treatment of obesity. Different weight loss procedures are Laparoscopic Sleeve Gastrectomy,\n Roux-en-Y Gastric Bypass, Mini Gastric Bypass, Laparoscopic Gastroplasty. Intragastric Balloon Placement is a non-surgical weight loss procedure.\n <\/p>\n\n Low vitamin D may cause gallbladder stone formation<\/p>\n\n\n\n Gall bladder removal may reduce vitamin D and magnesium levels. This may be due to reduced absorption of fat soluble vitamins (D, E, A and K).<\/p>\n\n\n\n People with compromised liver or digestive function are often vitamin D deficient. Exposure of skin to the sun\u2019s UVB<\/a> rays enables body to manufacture vitamin D. However, this process occurs in the liver and kidneys. Here people with a sluggish liver often do not manufacture vitamin D adequately.<\/p>\n\n\n\n\n
Introduction:<\/h2>\n\n\n\n
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Functions:<\/h2>\n\n\n\n
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Deficiency – Causes:<\/h2>\n\n\n\n
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![\"Vitamin](\"https:\/\/www.drrpadmakumar.com\/blog\/wp-content\/uploads\/2019\/07\/vitamin-d-deficiency.jpg\")
<\/figure>\n\n\n\nCorrelation of calcium level in vitamin D deficiency<\/h2>\n\n\n\n
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Primary hyperparathyroidism<\/h2>\n\n\n\n
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Obesity and After Bariatric Surgery<\/h2>\n\n\n\n
Bariatric Surgery<\/h5>\n
![\"Bariatric](\"https:\/\/www.drrpadmakumar.com\/blog\/wp-content\/uploads\/2022\/06\/bariatric-surgery-thumbnail-1.jpg\"\n)
\n Gallbladder Disease and Vitamin D Deficiency<\/h2>\n\n\n\n
![\"Gallbladder](\"https:\/\/www.drrpadmakumar.com\/blog\/wp-content\/uploads\/2022\/07\/gallbladder-icon.jpg\"\n){kind=icon}
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