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Doctor insights on: Benfotiamine And Methyl B12

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Dr. Randy Baker
1,010 doctors shared insights

Vitamin B12 (Definition)

Vitamin B12 is a vitamin which is a kind of nutritional agent ...Read more


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Do all fortified foods contain cyanocobalamin or do some contain methyl or hydroxo, and which natural sources of b12, are the most bioavailable?

Do all fortified foods contain cyanocobalamin or do some contain methyl or hydroxo, and which natural sources of b12, are the most bioavailable?

Most cyanocobalamin: No way of knowing if "all" have the cyano form but I believe virtually all have that form as it is the least expensive and most widely available. But methylcobalamin is the optimal form for supplementation- see http://tinyurl.com/h7scsna
Some foods contain higher concentrations of B12 but the form found in food is hydoxycobalamin so all equally bioavailable. See http://tinyurl.com/j7npwg3 ...Read more

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B12 deficiency and MTHFRDNA mutation. Should I be taking methyl b12.? I take cynacobilamin now

B12 deficiency and MTHFRDNA mutation. Should I be taking methyl b12.?  I take cynacobilamin now

Little science here: MTHFR testing is pushed by a single lab and most of us pathologists aren't impressed. A majority of people are told they have a mutation and get advised to take special vitamins. I'd take an ordinary preparation. Maybe time will prove these folks right but I would be surprised. ...Read more

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I am taking a l-methyl-b6-b12 daily. I recently had blood work done and my B12 level was 1600. Is this serious. Should i consult a hemotoligist?

I am taking a l-methyl-b6-b12 daily.  I recently had blood work done and my B12 level was 1600.  Is this serious. Should i consult a hemotoligist?

No: If you absorb B12 normally, taking supplementation will increase blood levels. If your kidney function is normal, you will just eliminate the excess in the urine. ...Read more

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Please could you tell me why i cannot obtain injectable methylcobalamin in uk for B12 deficiency even though i can obtain methyl tablets over here.

Please could you tell me why i cannot obtain injectable methylcobalamin in uk for B12 deficiency even though i can obtain methyl tablets over here.

Methyl Cobalamin: Is available in us by injection, but occasionally supply is diminished. Look again or ask a compounding pharmacist. ...Read more

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My hair is getting significantly darker. What is causing it? I am taking methylfolate and methyl-b12 (for mthfr), biotin, and melatonin (for sleep).

My hair is getting significantly darker. What is causing it? I am taking methylfolate and methyl-b12 (for mthfr), biotin, and melatonin (for sleep).

Hard to say: My first thought was that perhaps melatonin could cause this but a review of research suggests that it does not affect hair color. Folate (folic acid) ; B12 improve methylation but i an not aware of poor methylation affecting hair; but poor methylation can increase oxidative stress which might lighten hair. Then again, this could be a coincidence. ...Read more

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How long do benfotiamine stay in the body taken for anxiety and nerves taken at a daily dose of 150mg for 10 days?

How long do benfotiamine stay in the body taken for anxiety and nerves taken at a daily dose of 150mg for 10 days?

Thiamine: Vitamin B1 (thiamine), can be detected in the body within an hour, but there is no known half life so it is unclear how long it will stay in the body. It's metabolized by the liver and excreted through the urine. If taken no more than 300-600mg over the course of the day, usually in 2 divided doses of 150-300mg twice daily, you should be fine. ...Read more

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Is benfotiamine good for urine burning for my uncle , age is 46 weight is 82 currently he consumes 150 ml alcohol?

Is benfotiamine good for urine burning for my uncle , age is 46 weight is 82 currently he consumes 150 ml alcohol?

Thiamine: Or vitamin b1, is what you're describing, and that has not proven to be helpful in humans, except for alcoholics who may have a deficiency. The burning on urination should be treated by a physician, and not with any urinary anesthetic. ...Read more

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Benfotiamine -150mg,mecobalamin -1500mcg,alphalipoic acid-100mg,chromium picolinate-200mcg & inositol-150mg had it for nerves but now face side effect?

Benfotiamine -150mg,mecobalamin -1500mcg,alphalipoic acid-100mg,chromium picolinate-200mcg & inositol-150mg had it for nerves but now face side effect?

Five meds: As I read your question I cannot understand why you are prescribed five medicines.
Please have your primary doctor(s) explain this in some detail, and then let me know what they tell you. ...Read more

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Benfotiamine-150mg,mecobalamin-1500mcg,alpha lipoic acid-100mg,chromium picolinate-200mcg & inositol-150mg doc gave me for anxiety,nerves(1aday)11days?

Benfotiamine-150mg,mecobalamin-1500mcg,alpha lipoic acid-100mg,chromium picolinate-200mcg & inositol-150mg doc gave me for anxiety,nerves(1aday)11days?

Adjunct only: This is a mix of vitamins and minerals. If you have anxiety that is making life difficult, your physician can help you get out of or deal with a bad situation, help you to find other ways of thinking / learn new skills, and perhaps offer temporary medicine that actually works. Be brave and best wishes. ...Read more

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Why does methyl b12 give me diarrhea?

Why does methyl b12 give me diarrhea?

May not be B12: B12 is probably not causing the diarrhea. Why are you taking B12? If you are deficient in B12 due to malabsorption, the malabsorption is the likely cause of diarrhea. It would be prudent to consult a gastroenterologist. ...Read more

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How much of a 5000mcg Methyl B12 sublingual would actually be absorbed? I'm vegan & I just found out I'm 8 weeks pregnant and I was taking 1 every 2 wks. Concerned that levels would have spiked and harmed my baby. esp re: new links to autism

B12: The recommended daily allowance of B12 in pregnancy is 2.4 mcg. Most of what you are taking will be excreted into the urine as B12 is a water soluble vitamin. There isn't a confirmed causation between high B12 levels and autism. Most studies look at association rather than causation. ...Read more

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Is 244 low in b12?

Absolutely!: ideal b12 levels are above 1500 in blood. often times I will recommend that people take shots or very high levels of vitamin b12 10,000 mcg if they are less than 500. It can make a huge difference in energy, sleep, cognition, memory and any nerve problems you may have. You will also want to figure out why you have low b12. It could be due to an autoimmune condition or too low stomach acid. ...Read more

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Is 239 low for b12?

Yes, but...: "low values for B12 may not be what they appear to be. With that value, get "methyl malonic acid" and "homocysteine" checked. These are more sensitive tests. If both (especially methyl malonic acid) are abnormal, then it is truly low vitamin b12. Treatable, various ways. ...Read more

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Is 2500 mcg B12 too much?

Is 2500 mcg B12 too much?

B12: If taken daily, it is a very high dose. B12 is typically nontoxic but can have side effects at high doses. If taken once a month, then the dose is fine ...Read more

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What depletes B12 in body?

B12 deficiency: You are at higher risk of B12 deficiency if you: are the age over 45
are a vegan or vegetarian; suffer from digestive problems; take certain diabetes drugs; take acid-blocking medications;
are or have ever been anemic;have low stomach acid;drink alcoholic beverages
B12 deficiency can be due to low B12 intake(rare) or inability to absorb B12 from foods (common). ...Read more

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Is 372 low for my B12 to be?

Low: Yes that is a low number. Ideal serum B12 is at least 800. More info on which B12 supplements: http://drfairchild.blogspot.com/2012/12/b12-deficiency.html ...Read more

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If my B12 is 240, is that bad?

Vitamin B12: Values of less than 200 pg/mL are a sign of a vitamin B12 deficiency. People with this deficiency are likely to have or develop symptoms. Older adults with vitamin B12 levels between 200 and 500 pg/mL may also have symptoms. It would be appropriate for you to see a doctor and be evaluated for the relatively low levels. If you are taking medicine to lower stomach acid that may lower the B12. ...Read more