维生素B12又称钴胺素，它天然存在于动物性食物中，也可以被添加到食品或补充剂中。维生素B12是形成红细胞和DNA所必需的营养素，也是保障大脑和神经细胞的功能与发育的关键。维生素B12与我们所吃食物中的蛋白质结合。在胃中，盐酸和酶将其分解为游离形式。随后，它与一种名为内因子的蛋白质结合，从而在...
Vitamin B12 is found in dairy products, eggs, meat, chicken, shellfish, and fortified foods. People who are vegan or who follow a very strict vegetarian diet can be at risk of developing a B12 deficiency simply because they don't consume enough natural food sources of the vitamin. Other r...
Not only do clams have the highest concentration of vitamin B12 in any food, but they're also filled with potassium. About 3 oz of clams contain 534 milligrams (mg) of potassium.4 Clams are delicious inpastadishes or stews, like Cioppino or Manhattan clam chowder. Steam them until the she...
^Temova Rakuša Ž, Roškar R, Hickey N, Geremia SVitamin B(12) in Foods, Food Supplements, and Medicines-A Review of Its Role and Properties with a Focus on Its Stability.Molecules.(2022 Dec 28) ^Vitamin B(12).Drugs and Lactation Database (LactMed®).(2006) ...
Food-Bound Cobalamin Malabsorption (FBCM) 3 1 4 is seen in 20-40% of those 60 years of age. FBCM is caused by either lack of gastric acid, or H. Pylori infection. Occasionally it can be seen in younger people especially those with long-term use of drugs (such as histamine (H2) 5...
Vitamin B12 or cyanocobalamin obtained from food is initially bound by haptocorrin, a protein found in the saliva with high affinity for B12. This forms a haptocorrin-B12 complex. Cyanocobalamin passes through the stomach and is protected from acid degradation due to its binding to haptocorrin. ...
Pseudovitamin B(12) is the predominantcobamide of an algal health food, spirulina tablets.J Agric Food Chem. 1999 Nov;47(11):4736-41.Watanabe F, KatsuraH, Takenaka S, Fujita T, Abe K, Tamura Y, Nakatsuka T, Nakano Y. An update on cobalamin deficiency in adults.QJM. 2009Jan;102(1...
Institute of Medicine-Food and Nutrition Board (1998) Dietary reference intakes: thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, pantothenic acid, biotin, and choline. National Academy Press, Washington, DC Google Scholar Johanson JE Jr, Reyes FE, Polaski JT, Batey RT (2012) Str...
You may have a known risk factor, like celiac disease, pancreatic problems, or another digestive disease that makes it hard to absorb nutrients from your food. If no underlying cause is known, the tests chosen to detect the underlying cause of your deficiency will depend on your medical histor...
Mazzio EA, Harris N, Soliman KF. Food constituents attenuate monoamine oxidase activity and peroxide levels in C6 astrocyte cells. Planta medica. Oct 1998;64(7):603-606. McKay D, Sookman D, Neziroglu F, Wilhelm S, Stein DJ, Kyrios M, . . . Veale D. Efficacy of cognitive-behavioral ...