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cause of vitamin deficiency

A 36-year-old male asked:
Dr. Alvin Lin
Dr. Alvin Lin answered
30 years experience Geriatrics
Different causes: Vitamin d deficiency is mainly due to lack of sunlight (although could also increase skin cancer risk). Vitamin B12 deficiency is more nutritional alt ... Read More
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A 29-year-old male asked:
Dr. Ed Friedlander
44 years experience Pathology
Contentious: I'm not a focused expert on this, but from my reading I am not ready to tell anyone that helicobacter infestation causes demyelination, neuropathy, mu ... Read More
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A 31-year-old member asked:
Dr. Philip Chao
38 years experience Radiology
Lack of: Proper exposure to sunlight.
A 34-year-old member asked:
Dr. Linda DiMeglio
28 years experience Pediatric Endocrinology
No sun, poor intake: Vitamin d deficiency can happen either when you get an adequate intake through your diet or have inadequate exposure to uv light from the sun. Some fo ... Read More
A 44-year-old member asked:
Dr. Bryan Levey
27 years experience Pediatrics
The cause...: ...Of vitamin d deficiency is either lack of manufacture of vitamin d within the body, usually due to lack of sun exposure, or lack of sufficient inta ... Read More
A 34-year-old member asked:
Dr. Jay Park
Dr. Jay Park answered
50 years experience Pediatrics
Poor intake/absorp-: There are three categories of problems leading to vitamin d deficiency. --low intake of vitamin d: individuals on vegetarian diet & vegan diet --low ... Read More
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A 40-year-old member asked:
Dr. Mandakini Patel
41 years experience Pediatrics
Vit d def in sailors: It could be from both nutrtional def and lack of sunlight if the saiore are sailing in areas with low or no sunlight ( e.g. Always foggy).
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A 37-year-old male asked:
Dr. Leila Hashemi
21 years experience Internal Medicine
Vitamin deficiency: causes of vitamin D def: 1- darker skin 2- obesity (fat cells extracts Vit D from bloodstream) 3- lack of Vit D in diet, especially if u r vegetarian ... Read More
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A 48-year-old member asked:
Dr. Valencia Porter
21 years experience Holistic Medicine
Possibly: If both are equally affected, think globally such as nutrition (paricularly electrolytes), lack of stretching and movement, general circulation issues ... Read More
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A 19-year-old male asked:
Dr. Dora Chizea
48 years experience Anti-Aging Medicine
Can take Vit-D supp.: 19y/o Male w low vit D 4ng/ml (30-100) asks What are the causes of VitD deficiency? Is low Vit D related to cancer? Causes many: Diet esp Vegies only ... Read More

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