Questions tagged [vitamin-b]

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Is there a correlation between a vegan diet low in Vitamin B12 and the occurrence or severity of vitiligo?

Studies have shown a significant reduction of Vitamin B12 levels in individuals with vitiligo. This meta-analysis provides an overview: https://pubmed.ncbi.nlm.nih.gov/30165163/ Results: Twenty-two ...
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2 votes
1 answer
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Meaning of "Depletion of methyl-donor pool glycine, serine, and histidine" in a review article

From a review titled Cerebral Folate Deficiency Syndrome: Early Diagnosis, Intervention and Treatment Strategies, from Table 1: V. Conditions affecting folate metabolism in the brain Hereditary ...
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2 votes
1 answer
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Is there a modern term for "pessary cell"?

I was reading about the vitamin B12, and came across the description of a rare syndrome, with a mention of the "pessary cell" (a red blood cell in which the hemoglobin has disappeared from ...
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2 votes
1 answer
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How to make sense of vitamin B supplements offered in doses varying by 7000%?

These two Vitamin B Complex supplements contain doses that differ by a factor of as much as 70 times. How much, if any, supplement is good for you? That depends of course on you, your diet, your ...
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Meaning of "over-utilisation/degradation defects such as L-dopa methylation and neurodegeneration"

In Cerebral folate deficiency: Analytical tests and differential diagnosis, I came across a tough phrase: Neurological disease was first linked to folate deficiency by Pincus and co-workers in ...
  • 1,640
6 votes
1 answer
398 views

How does the "leucovorin rescue" work exactly? Why doesn't it make cancerous tumours grow?

Folinic acid is used to counteract methotrexate toxicity in cancer patients. But why exactly doesn't it counteract methotrexate's therapeutic effects? Why doesn't this "leucovorin rescue" make tumors ...
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1 vote
0 answers
407 views

Does yogurt contain any B vitamins?

Recently, vitamin B information has been removed from yogurt labels. I am not sure if it is (any longer) considered a reasonable source for B vitamins. B vitamins thiamine (B1) riboflavin (B2) ...
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1 vote
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36 views

Is it safe to eat more Vitamin B than you need?

My uncle who worked in pharmaceutical factory, says it is safe to eat more Vitamin B than you need, because people have limited absorption of Vitamin. Is this ture ?
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3 votes
0 answers
37 views

What is the proper time to eat Vitamin B2 and B6?

I am usually told to take particular medicines before dinner or after dinner. Does this apply to Vitamin B2 and B6? More detailly, Should I eat them in 30 minutes near dinner (after longer time, ...
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2 votes
3 answers
164 views

Vitamin B food source [closed]

My question is very simple. What are some good vegetarian food sources for vitamin B? I'm asking this here because I tried to search it on the net but couldn't find much.