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What depletes vitamin B12?

Lack of vitamin B12 in your diet: People who don't eat enough foods that naturally have vitamin B12 or don't eat foods fortified with vitamin B12 can develop vitamin B12 deficiency. Gastritis: Gastritis is inflammation of the stomach lining, and it's a common cause of vitamin B12 deficiency.

my.clevelandclinic.org - Vitamin B12 Deficiency: Symptoms, Causes & Treatment
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Overview

What is vitamin B12 deficiency?

Vitamin B12 deficiency happens when your body is either not getting enough or not absorbing enough vitamin B12 from the food that you eat that it needs to function properly. Vitamin B12 is an important nutrient that helps your body make red blood cells and DNA, the genetic material in all of your cells. Vitamin B12 deficiency can cause physical, neurological and psychological problems if it is not treated.

What is vitamin B12?

Vitamin B12 is an important nutrient that helps your body keep your nerve cells and blood cells healthy. It also helps your body make DNA, the genetic material in all of your cells. Your body does not make vitamin B12 on its own, so you have to consume food and drinks that have vitamin B12 in order to get it. Vitamin B12 is found in animal products you eat and drink such as meat, dairy and eggs. It can also be found in fortified foods (foods that have certain vitamins and nutrients added to them) such as certain cereals, bread and nutritional yeast. Adults need around 2.4 micrograms (mcg) of vitamin B12 a day, and people who are pregnant or breastfeeding need more. The amount of vitamin B12 babies and children need varies based on age.

How does my body absorb vitamin B12?

There are two things that need to happen in order for your body to absorb vitamin B12 from the food you eat. First, hydrochloric acid in your stomach removes vitamin B12 from the food it was in. Next, vitamin B12 combines with something called intrinsic factor, a protein made by your stomach. Vitamin B12 is then able to be absorbed by your digestive system. Some people have a rare condition called pernicious anemia, which means their stomach does not make intrinsic factor. Because of this, their body cannot properly absorb vitamin B12, which causes a vitamin B12 deficiency.

What is vitamin B12 deficiency anemia?

Vitamin B12 deficiency anemia happens when your body does not have enough healthy red blood cells because your body has a vitamin B12 deficiency. Vitamin B12 is needed to make red blood cells. Because of this, a lack of vitamin B12 can cause anemia. People can have a vitamin B12 deficiency without having anemia.

Who does vitamin B12 deficiency affect?

Any person can develop vitamin B12 deficiency at any age. People who are 60 years old or older are more likely to have vitamin B12 deficiency compared to other age groups.

How common is vitamin B12 deficiency?

Approximately 1.5% to 15% of people have vitamin B12 deficiency. Here are the percentages of people who have vitamin B12 deficiency based on age ranges:

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What drink has a lot of B12?

Cow milk is a good source of this vitamin, with one cup providing about a solid amount of riboflavin. A cup also contains B12, along with some B1 and B5. The human body absorbs B2 from milk particularly well, and most people get all the riboflavin they need from dairy products, meat, and vegetables.

insider.com - 11 foods and drinks that give you vitamin B - Insider

A lot of foods contain high amounts of the different forms of vitamin B. Some foods that contain decent amounts of vitamin B include eggs, salmon, beef, and oysters.

Spinach, sunflower seeds, and milk also contain high amounts of vitamin B.

Visit INSIDER's homepage for more stories.

Top editors give you the stories you want — delivered right to your inbox each weekday. Loading Something is loading. Thanks for signing up! Access your favorite topics in a personalized feed while you're on the go. download the app Email address By clicking ‘Sign up’, you agree to receive marketing emails from Insider as well as other partner offers and accept our Terms of Service and Privacy Policy B vitamins play an important part in keeping your body healthy. Among other functions, these vitamins support your nervous system, skin, cell metabolism, and energy levels. There are actually eight different forms of vitamin B. Thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folate (B9), and cobalamin (B12) are known as the B complex vitamins. Out of all the B vitamins, cobalamin (B12) is the only one your body can store for long periods of time. This means that you need to regularly get the rest through your diet or supplementation, though it's important to note that taking a B complex supplement typically won't benefit you unless you're already deficient in these vitamins. As it's always best to get vitamins and minerals through your diet when possible, here are a few of the best foods for making sure your body has all the B vitamins it needs.

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