Famously, the foods containing vitamin B12 are dairy, eggs, fish, seafood, and meat. What isn’t well known is that vitamin B12 originates exclusively with microorganisms, that is, bacteria. So, Asian black tea that is fermented with certain bacteria contains Methylcobalamin ~ the active form of vitamin B12.
Mushrooms, some seaweed, soil, in fact almost everything around us contains the bacteria that originates B12.
On the other hand, cereals like Fruit and Fiber contain B12 only because it has been added in the commercial cyanocobalamin form.
|Yogurt, low fat, 1 cup|
Milk, 1 cup
|Dairy ~ Cheeses, 7 oz.|
Goat, soft and semi soft
Mozzarella (whole milk)
Parmesan, dry grated
|Egg, whole, hard boiled, 1||0.6|
|Salmon ~ 4 oz.|
|Atlantic wild, cooked|
Chinook, wild, cooked
Chinook, wild, smoked, (lox), regular
Chum/Dog Salmon, cooked
Chum/Dog Salmon, canned
Coho, wild, cooked
Coho, farmed, cooked
pink, canned with bone
Salmon, sockeye, cooked
Salmon, sockeye, canned
|Cod, , Pacific, fillet, baked/broiled|
Haddock, , cooked, 3 ounces
Halibut, , baked/broiled
Snapper, baked, 4 oz.
Sole, 1 fillet
Trout, , rainbow, wild, cooked, 3 ounces
Tuna, canned in water, drained , 3 oz
|Clams, breaded & fried, ¾ cup|
Mollusks, clams, etc., steamed, 3 ounces
Shrimp, mixed species, steamed/boiled 4 oz.
|Beef, tenderloin 4 oz.|
Beef, top sirloin, lean, choice, broiled, 3 ounces 2
Beef, liver, braised, 1 slice
Calves liver, 4 oz.
Chicken, roasted, ½ breast
Emu, steak, ground or fillet
Fast Food, Cheeseburger, double patty & bun
Fast Food, Taco, 1 large
Pork, ham, 3 oz
Rabbit, wild, cooked, stewed
Squirrel, cooked, roasted
Turkey, dark meat, 5 oz.
Turkey, white meat
Venison, 4 oz.
|Fortified, ¾ cup 6||6.0|
Note: The unit of measurement in list above is a microgram.
The unit in the list below is ppb – parts per billion. ppm – parts per million – is the usual.
|Foods less famous for B12||parts per billion|
|Barley Grass (100 grams powdered)|
White Button Mushrooms
Tempe: fermented soy bean cake, 3 oz.
Miso: fermented rice, barley or soybeans per 100 g
Batabata-cha, per 100 g of dry weight
Grain, flour, cereals: approx.
Because the B12 content is so low in the foods less famous for containing B12, it is important to recognize that the content may vary greatly depending on where the food was grown.
Batabata-cha ~ A Fermented Japanese Black Tea
A Japanese fermented black tea (Batabata-cha) contained a considerable amount of vitamin B(12) (456 +/- 39 ng per 100 g dry tea leaves and 2.0 +/- 0.3 ng per 100 mL of tea drink). A corrinoid compound was partially purified and characterized from the tea leaves. The patterns of the purified compound by the silica gel 60 thin-layer chromatography and C18 reversed phased high-performance liquid chromatography were identical to those of authentic vitamin B(12). When 20 week old vitamin B(12) deficient rats, which excreted substantial amounts (about 250 mg/day) of methylmalonic acid in urine as an index of vitamin B(12) deficiency, were fed the tea drink (50 mL/day, 1 ng of vitamin B(12)) for 6 weeks, urinary methylmalonic acid excretion (169 +/- 29 mg/day) of the tea drink-supplemented 26 week old rats decreased significantly relative to that (250 +/- 32 mg/day) of the deficient rats. The results indicate that the vitamin B(12) found in the fermented black tea is bioavailable in mammals.
B12 Status in Long-term Vegans
Rauma et al. (1995, Finland) examined the B12 status in long-term adherents of a strict uncooked vegan diet called the “living food diet”…The 16 vegans consuming nori and/or chlorella seaweeds had serum B12 levels twice as high as the 5 vegans not using these seaweeds. Rauma et al. concluded that some seaweeds consumed in large amounts can supply adequate amounts of bioavailable B12. However, they also thought the high levels of iodine in the seaweeds would be detrimental over time. Vitamin B-12 status of long-term adherents of a strict uncooked vegan diet, Rauma, 1995
An indication of low vitamin B12
One indication that you might be significantly low on vitamin B12 is the appearance of lines or ridges on your fingernails, and the disappearance of the moons at the bottoms of your fingernails.
There are many common things, not to mention stress, which reduce the amount of B12 you get from your food. Some of these things also deplete the B12 you have stored in your body. (For your body to work properly you need B12 in all of your muscle tissue, according to the neurologist I was seeing when my B12 problem was first diagnosed.)
There are two forms of Vitamin B12 commonly available for purchase. It’s a good idea to learn to distinguish between them, since one form, Methylcobalamin, is the active form of B12 and acts both more quickly and more efficiently, the other is Cyanocobalamin. You will be able to find Methylcobalamin at your health food store. Be sure to buy Methylcobalamin — it gives far better results than the form which is simply labeled “B12″.
Because there is so little B12 in foods, (there’s more than enough if you aren’t under a lot of stress, I don’t want to give the wrong impression) I’m going to talk about the amount to take. 1,000 mcg (micrograms) is the same as 1mg. Dissolving a 1mg Methylcobalamin lozenge under your tongue every day for a month is the same as having a B12 shot a month. A 5mg Methylcobalamin lozenge dissolved under your tongue every day for a month will equal 5 B12 shots a month.
So, How much Methylcobalamin to use?
Let me give you an idea of how much B12 is generally prescribed by doctors: replacement therapy typically begins with a shot a day for a week or two, followed by a shot every week for a few weeks, after which there is a shot a month, generally for life, for “maintenance.”
To equal a shot a day, you would need to dissolve 30 mg a day of Methylcobalamin lozenges under your tongue. That would be 6 of the 5 mg lozenges a day.
To equal ten shots every two weeks, you would need to dissolve 4 of the 5mg Methylcobalamin lozenges under your tongue every day for a month.
Just to be clear, it appears that once there is a B12 deficiency, the amount of B12 needed to recover is not available from food.
It was when I was having a shot a day that my peripheral neuropathy went away.