B12

B12

B12 Questions

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by 4181 · about 23 hours ago

Recently I started supplementing b12 methylcobalamin and at first had some good reactions, my skin was brighter, I had a bit more energy and my anxiety improved. But quite soon after that I got ill about 3 times in a row and have been... (more)

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paleot 0 · February 17, 2014 at 5:18 PM

I take methylb12 daily. How much are you taking? I find that one can noticeably build up over time. I took 250mcg for a while, then lately have been doing 500mcg with 400mcg methylfolate. Trying to understand methylation is a... (more)

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by 3280 · about 23 hours ago

Has anyone here ever had bad effects from taking too much B12? (Like 5,000 or 10,000)? I'm now just starting to research the possibility of too much B12 driving down potassium levels, and perhaps causing muscle cramps and twitching. ... (more)

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CaveMan_Mike 0 · January 12, 2014 at 4:04 PM

this: http://www.ehow.com/list_6075324_signs-low-b12-low-potassium.html and Treatment of megaloblastic anemia with vitamin B12 and folate, resulting in rapid uptake of cellular potassium. For more Paleo Diet hacks:... (more)

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by 10 · about 23 hours ago

So, I've been a lurker for a while, and going through some health issues for the past couple years without really knowing what to do about it. I haven't eaten any gluten grains in two years. I did eat some grains and legumes this past summer,... (more)

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mariepjordan 0 · April 02, 2014 at 8:00 AM

Just joined paleo hacks this morning. I am very interested in Blastocystis Hominis. I have been diagnosed again with it and assume that it has been there all the time even though I tested negative. I have been ill now for 16 years. I would... (more)

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by 0 · about 23 hours ago

Since being on the Paleo Diet (1 year now) I have become anemic and B12 deficient. Although I've lost all excess weight I am tired and have heightened anxiety. Any suggestions? I wasn't like this before the diet.

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Happy_Now 0 · August 16, 2013 at 6:03 AM

I am going to make a wild speculation that some sort of bacteria that feeds on iron is at the source of your woes. Sometimes when we go paleo, and embrace red meat, we feed those guys more than they were fed before, so they grow in population,... (more)

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by 5 · about 23 hours ago

Hi Paleohackers! Recently I've been looking at my diet on Cronometer and realized that I've been consistently getting more than 1600% of the RDA for B12 daily (combination of beef, liver, occasionally oysters), and my skin has been breaking out... (more)

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by 181 · about 23 hours ago

Hi all, I would like some suggestions on what blood tests to take. Here are some facts Strictly Paleo diet with < 100g carbs a day, plenty of greens BT showed low serum B12 (104/637 pmol/L) 1 year ago BT showed low Ferritin 1 year... (more)

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Matt_11 0 · July 16, 2013 at 1:25 PM

Holy excessive supplementation, Batman! Put down the pills, and eat some real food. Like another question this morning, you don't have a proper baseline from which to hack, you're entire diet/supplementation scheme is random, disjointed and... (more)

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by 120 · about 23 hours ago

I was very deficient in b12. I know the sublingual liquid does great things for me. However I am beginning to question the efficacy of sublignual pills. I have a hunch that when I swallow the saliva immediately I am not absorbing the b12. Anyone... (more)

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Matt_11 0 · May 19, 2013 at 6:52 PM

What form of B12 are you supplementing with? If you've got issues, methyl-B12 is considered the superior form. Cyano-B12 is cheap, which is why all cheap vitamins use it. Better yet, stick to real food. The bioavailability is best with real foods. (more)

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by 30 · about 23 hours ago

I have anemic tendencies and digestion issues (mainly bloating, but also incomplete elimination). Part of this is genetic, due to folate and B12 metabolism issues (I'm compound heterozygous for MTHFR, and I have a variant in the TCN2 gene that... (more)

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Lazza 0 · May 02, 2013 at 11:54 AM

If you had a colonic biopsy showing inflammation then it seems likely you have an inflammatory bowel disease (Crohn's, ulcerative colitis). Like most autoimmune diseases, folks with IBD can experience periods of remission and relapse. So it... (more)

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by 1649 · about 23 hours ago

Hey y'all! So, here is the thing: About 7-8 months ago I started having tingling extremities. It got to the point where my hands and feet were constantly tingling and kind of numb. I had my regular GP at the time run a B12 serum test which was... (more)

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Andrealyne 0 · September 07, 2013 at 2:12 PM

I have similar symptoms. Neuro work up is negative. Will see neuro surgeon because I have alot of cervical myelopathy. My B12 is high and I don't supplement. I am homozygous MTHFR c766t- with other weird methylation issues. I also did a... (more)

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by 18 · about 23 hours ago

Serious answers only. I don't need a noob answer like its found out in nature because that is BS. EDIT: The science says that 99% of the B12 produced industrially is for animal feed. Naturally.. there wouldn't be enough B12 in animals for us? (more)

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Ucan 0 · April 04, 2013 at 10:59 PM

"Cows that are grass fed are able to get enough B12 from the soil that is naturally found on grass and grass roots." http://www.321natural.com/2012/09/vegan-b12-sources.html "Cows are ruminants, as are bison, buffalo, goats, antelopes, sheep,... (more)

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by 20 · about 23 hours ago

1 day and 2 days before my blood test I ate turkey liver (about 300g all together). In day 3 I had blood test and it showed that my B12 is very high. S-B12 813.8 pmol/L (141-489) H The problem is that I have symptoms of low B12. Is it possible... (more)

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CD 0 · April 01, 2013 at 4:00 PM

If I were you I would accept that I do not have low B12 with the current diet/ supplements you are using. Give it a few weeks and see if your symptoms go away. If they do, you were right and you figured out how to fix it yourself <--... (more)

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by 825 · about 23 hours ago

i don't really have any unusual eating habits aside from eating raw grass-fed stew meat from whole foods on a daily basis. it's delicious and i feel more energetic after eating raw meat as opposed to cooked. could this be because b12 is easier to... (more)

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by 3 · about 23 hours ago

I???m looking to incorporate more paleo principles in my diet. I'm a 20something female who has lost significant weight the last couple of years, but am still obese. My original diet was basically all carbs and sugar, sometimes avoiding meat (junk... (more)

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Matt_11 0 · September 29, 2012 at 5:09 PM

As an omnivore, I don't think cat or dog meat sounds disgusting. Food is food. Your hangup is purely psychological, you can get over that. Eggs are a good start, but whole egg is essential. Dairy is ok, find a good source but that's the case with... (more)

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by 153 · about 23 hours ago

It's been probably 3 years now that I've been trying to figure out what's causing my chronic fatigue, low energy, IBS and some other health issues. So far, I've received little help from doctors. I recently saw a hematologist who couldn't find... (more)

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Raza 0 · May 19, 2012 at 5:57 PM

I would consult with Chris Kresser on this. I started working with him last year, and he felt my B12 levels were low at 384 pg/mL. I started doing injections, and now my levels are at 1550 pg/mL. It's not like I felt horrible before, so the... (more)

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by 203 · about 23 hours ago

Apologies in advance this is not an American reading Gender: Female Age: 16 Serum Vitamin B12 and Folate studies B12 (180-740) pmol/L - 797 R.CF ( > 630 ) nmol/L - 863 ( if it helps I had a mild infection when I got this blood tests I also... (more)

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Stephen_5 0 · March 15, 2012 at 2:36 PM

The test is good at telling when somebody is B12 insufficient. An upper limit is set on the test only because a high value can, in the context of other tests, hint at liver function problems. If your liver enzymes (ALT, AST, etc.) were normal,... (more)

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by 91 · about 23 hours ago

I know all thoughts of energy drinks are bad. But tell me why please :) and especially the Absolutely Zero Monster sugar free, and its my fav. (its been my hardest ween yet) INGREDIENTS: CARBONATED WATER, CITRIC ACID, ERYTHRITOL, NATURAL... (more)

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dar1701 0 · February 04, 2012 at 3:21 AM

If i want a energy boost I take a Time released B12 1000 mcg. It gives me energy throughout the day without the unwanted chemicals or crash!

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by 313 · about 24 hours ago

I was wondering if I had some ground beef if it was a good idea to cook it in water. I wanted to cook it or brown it in a pan but I could be losing a lot of the nutrients that way as the beef is in contact with the heat source or pan throughout... (more)

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Lutfisk 0 · December 13, 2011 at 4:35 AM

you are overthinking it. don't eat boiled ground beef. :(

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by 390 · about 24 hours ago

I'm a man and I have 12.3 hemoglobin. My blood tests say Iron, B12 and Folate (B9) are alright. My Hematocrits are low, and Ferritin high. What gives?

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Tom_R_ 0 · August 16, 2011 at 5:58 PM

I've posted several times on here regarding my unexplained anemia (35 year old male). My hemoglobin is also about 12.3. At times, my iron and ferritan levels have been low but are currently fine. B12 is fine. My WBC and RBC counts are slightly... (more)

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by 2581 · about 24 hours ago

Cyanocobalamin is one of the forms of Vitamin B12 (cobalamin). The other forms are methylcobalamin and hydroxocobalamin. The latter two are more natural forms, I think. Cyanocobalamin is basically a cyanide molecule attached to a B12 molecule. I... (more)

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Ed 0 · September 19, 2010 at 8:45 PM

Cyanides occur naturally in some foods, as noted in other answers. Hydrogen cyanide is also used rarely as a grain fumigant. Cyanide is an acute poison, but it does not cause chronic toxicity. Cyanide is toxic and potentially lethal to humans... (more)

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by 2581 · about 24 hours ago

This is somewhat popular as a "health food"...people make it into a green juice. I have never done it. The claim is that drinking this stuff is like eating loads of vegetables. It's grass...from wheat...or maybe it's not technically grass, but it... (more)

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Matt_1 0 · August 25, 2010 at 12:16 PM

Wheat is a grass. The cotyledon is the first leaf that grows from the grain after germination. It is actually an expansion of the embryo within the wheat grain and so tends to contain alot of the nutrition that is present in the wheat... (more)

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by -1 · October 24, 2014 at 4:59 AM

i know dave asprey is not paleo & that supplements are a big thing over at bulletproof exec,but would be interested on some feedback on their/his recs for folate and b12,the recs are "Dose: >5mg of methylcobalamin or hydroxycobalamin and... (more)

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Methodician 0 · June 30, 2014 at 4:32 AM

personally based on nutrient tracking I find that I get plenty (if not excessive) b12 from dietary sources on a paleo diet (sources like fish and beef). Getting enough folate is a little more variable.Given the various issues with synthetic folate... (more)

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by 103 · October 24, 2014 at 3:22 AM

Does anyone has tested B12 in her or his blood? Is it in the limits?

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Dexter 0 · May 12, 2011 at 8:33 PM

The top ten foods containing B-12 1: Clams, Oysters, and Mussels Shellfish are a great source of vitamin B12 and can be eaten raw, baked, steamed, fried, or made into chowder. In addition to vitamin B12 shellfish are a good source of zinc,... (more)

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by 4181 · October 23, 2014 at 4:14 AM

I ate a jar full of pickled clams the other day which amounted to about 3000% of my daily intake of b12 I have a feeling Im deficiant in it or anemic because I have really bad skin and dark circles and digestive problems and depression Anyway I... (more)

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MarcPH 0 · January 03, 2014 at 3:57 AM

Looks like you have shellfish poisoning and yet in a stage bad enough to experience the symptoms itself. It just takes a couple of shellfish and other toxic animals over a period of time for the symptoms to be exemplified by what you have been... (more)

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by 0 · October 23, 2014 at 4:14 AM

I am suffering from adrenal fatigue, also some starting problems with thyroid (tsh value on the high border, t3 and t4 normal). I also have leak gut. My nutritional practitioner recommended me taking high doses of b vitamin complex (on average... (more)

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Hepoberman 0 · September 03, 2013 at 12:48 PM

Most RDA recommendations are woefully in need of revision. Perhaps your B complex has Folate instead of folic acid (important for MTHF polymorphisms). That B vitamin could help your BH4 cycle provide substrate for the pathways needed for the... (more)

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by 668 · October 22, 2014 at 3:05 AM

My boss was recently diagnosed with a vitamin B12 deficiency after suffering some serious symptoms including seizures. She is now on B12 shots and has completely reversed all of her symptoms. Further testing has revealed that her body doesn't... (more)

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Carolee 0 · September 06, 2010 at 4:17 PM

Yes, I know of one place where absorption changes due to diet: Celiac disease. My family thought I was an isolated case in our group until my little sister developed the same symptoms I did. Since then, my entire family has gone on a... (more)

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