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Thorne Research, Bio-B12, 60 Vegetarian Capsules

$18.35

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Thorne Research, Bio-B12, 60 Vegetarian Capsules

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Thorne Research, Bio-B12, 60 Vegetarian Capsules

In Stock
  • Expiration Date: 05/2019
  • Shipping Weight:
    0.08 lbs
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  • Product Code: THR-12003
  • UPC Code: 693749120032
  • Package Quantity: 60 Veggie Caps
  • Dimensions:
    1.8 x 1.8 x 3.3 in, 0.05 lbs
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Product Overview

Description

  • Dietary Supplement
  • Hypoallergenic

In order for vitamin B12 to be absorbed in the gastrointestinal tract, it first needs to be bound in the stomach to a protein called R-protein. In the intestines pancreatic proteases cause the R-protein to release vitamin B12 to bind with intrinsic factor, making it absorbable. Thorne Research's Bio-B12 contains methylcobalamin (an active form of vitamin B12) and 5-MTHF (an active form of folate) in a base of papain. Papain is a potent protein-digesting enzyme from papaya that also results in the release of vitamin B12 from the R-protein, thus facilitating the absorption process. Zinc picolinate is included for support of the pancreas, which produces other digestive enzymes that facilitate the absorption process.

Methylcobalamin (an active form of vitamin B12) is essential for recycling homocysteine and the formation of methyl donors involved in cardiovascular function, sleep, blood cell formation, and nerve function. Most vitamin B12 supplements contain cyanocobalamin; however, the liver must first "detoxify" the cyanide molecule and attach a methyl group to form methylcobalamin from the cyanocobalamin. Methylcobalamin is already in the biologically active, tissue-ready form. Evidence indicates the body utilizes methylcobalamin more efficiently than it does cyanocobalamin. Research shows the quantity of cobalamin detected following a small oral dose of methylcobalamin is similar to the amount following administration of cyanocobalamin; but significantly more cobalamin accumulates in liver tissue following administration of methylcobalamin. Human urinary excretion of methylcobalamin is about one-third that of a similar dose of cyanocobalamin, indicating substantially greater tissue retention.

Suggested Use

Take 1 capsule one to three times daily or as recommended by your health-care practitioner.

Other Ingredients

Hypromellose (derived from cellulose) capsule, microcrystalline cellulose, silicon dioxide.

Warnings

Tamper Evident: Use only if bottle is sealed. Store tightly sealed in a cool, dry place.

If pregnant, consult your health-care practitioner before using this product.

Supplement Facts
Serving Size: One Capsule
Each Capsule Contains: Amount Per Serving % DV
Vitamin B12 (as methylcobalamin) 1 mg 16,667%
Folate (as L-5-Methyltetrahydrofolate† from L-5-Methyltetrahydrofolic Acid, Glucosamine Salt) 800 mcg 200%
Zinc (as Zinc Picolinate) 15 mg 100%
Papain†† 75 mg *
*Daily Value (DV) not established.
†This product uses Gnosis S.p.A.'s L-5-Methyltetrahydrofolic Acid, Glucosamine Salt (Quatrefolic).
††An enzyme derived from Papaya (Carica papaya).
iHerb Customer Reviews
 

Ineffective if you're B12 defficient

Posted by iHerb Customer on Sep 17, 2017 | Verified Purchase

I needed to take at least 4 tablets a day to notice any effect at all - I don't know anyone that likes to take more than 2 tablets a day let alone 4! I needed to reorder a higher dose. Feel like I wasted my money.

Thanks for your feedback!

One of the best B12 supplements on the market!

Posted by iHerb Customer on Aug 14, 2017 | Verified Purchase

I am a health coach and detoxification specialist that is always looking for the best supplements in the world and this B12 supplement by Thorne Research is one of the best in the world because it contains methylcobalamin which is a type of b12 found in nature unlike cyanocobalamin which is made from cyanide. It also contains nutrients specifically added to make sure your absorbing the B12 because without the intrinsic factor working correctly in the body which almost no ones is, you will not absorb b12 taken orally. It also contains co factor nutrients which help improve the uptake of the b12 and work synergistically to improve your health holistically.

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Convenient

Posted by iHerb Customer on Feb 27, 2017 | Verified Purchase

Being deficient in B12, I was taking a sublingual tablet (which eventually disturbed my mouth lining) and a B complex. This is a convenient way to cut down on the number of supplements you have to swallow.

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Good formulation, gets smelly

Posted by iHerb Customer on Sep 14, 2016 | Verified Purchase

Like many Vit.B supplements, these caps DO have a definitive smell to them that becomes stronger the longer they sit in the bottle. Unavoidable, really, but did get to the point where I wasn't taking them because of how strong they smelled!

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Excellent product

Posted by iHerb Customer on May 07, 2015 | Verified Purchase

I need to supplement both b12 and zinc, so this is a good combination: b12 as methylcobalamin and zinc in picolinate form. Plus, it is good to know there are no preservatives and fillers in Thorne Research products and they are free of all major allergens.

Thanks for your feedback!