What medical condition depletes B12?

Pernicious anemia, gastritis, Crohn's, celiac disease, gastric surgeries (like bypass), and tapeworm infections are major diseases/conditions causing B12 deficiency by impairing absorption, often due to lack of intrinsic factor or stomach acid, while strict vegan diets also pose a risk. Autoimmune conditions, alcoholism, and certain genetic factors can also play a role in preventing the body from absorbing or utilizing this vital vitamin.

What underlying conditions cause low B12?

Causes of vitamin B12 deficiency

• Pernicious anaemia. Pernicious anaemia is the most common cause of vitamin B12 deficiency in the UK. ...
• Diet. ...
• Conditions affecting the stomach. ...
• Conditions affecting the intestines. ...
• Medicines. ...
• Functional vitamin B12 deficiency.

What autoimmune disease depletes B12?

Pernicious anemia is a relatively rare autoimmune disorder that causes diminishment in dietary vitamin B12 absorption, resulting in B12 deficiency and subsequent megaloblastic anemia. It affects people of all ages worldwide, particularly those over 60.

What do you crave when your B12 is low?

A B12 deficiency can cause unusual cravings, often for nutrient-rich, B12-containing foods like meat, fish, or eggs, but also potentially for sugar or even non-food items (pica), though this is rare, with symptoms like fatigue and anemia often accompanying the urges. While cravings can signal a shortage, they aren't definitive; doctors confirm B12 deficiency with tests, as cravings can stem from emotions or other nutritional gaps, not just B12. 

What are two diseases caused by deficiency of vitamin B?

Severe vitamin B deficiency can cause diseases such as beriberi or pellagra. People who are vitamin B deficient may feel tired, numbness or weakness, among other symptoms.

The Scary Truth About B12 Deficiency No One Talks About

What causes falsely low B12 levels?

folic acid deficiency can cause falsely low serum vitamin B12 levels. methylmalonic acid levels can be elevated in patients with renal disease (the result of decreased urinary excretion); thus, elevated levels must be interpreted with caution.

What blocks vitamin B12 absorption?

Factors blocking B12 absorption include stomach acid reducers (PPIs, H2 blockers), intestinal issues (Crohn's, celiac, surgery like gastric bypass), autoimmune conditions (pernicious anemia), certain medications (metformin, some epilepsy drugs), alcohol abuse, and a lack of intrinsic factor or dietary intake (vegans), all hindering the stomach acid/intrinsic factor needed to release B12 from food for absorption in the ileum.
 

What is the #1 food highest in B12?

The #1 food highest in Vitamin B12 is beef liver, which provides an extremely high amount (over 2,900% Daily Value in a 3oz serving), with other organ meats, clams, oysters, and fortified nutritional yeast also being exceptionally rich sources. Animal products are the primary natural sources, but fortified cereals and plant milks are good options for vegetarians and vegans.
 

Is 2 eggs a day enough B12?

Yes, two eggs a day can provide a significant portion, around 46%, of the daily recommended vitamin B12 for adults, making them a good source, especially since the B12 in the yolk is easily absorbed. However, for those with a deficiency or at risk, eggs alone might not be enough; a varied diet with other animal products (meat, fish, dairy) or fortified foods/supplements is often needed to meet the total daily requirement (around 2.4 mcg for adults). 

What are the mental symptoms of B12 deficiency?

Vitamin B12 deficiency can also cause symptoms that affect your brain and nervous system (neurological symptoms), including: numbness. muscle weakness. psychological problems, which can range from mild depression or anxiety, to confusion and dementia.

What is the hardest autoimmune disease to diagnose?

There isn't one single "hardest" autoimmune disease to diagnose, but Vasculitis, Lupus (SLE), and Sjögren's Syndrome are frequently cited due to overlapping symptoms, slow progression, and varied presentations, making them "great imitators" that mimic many other conditions. Rare conditions like Idiopathic Inflammatory Myopathies (IIM), affecting muscles and organs, are also extremely challenging, with diagnoses sometimes taking years, notes Johnson & Johnson. 

What is the Sjogren's syndrome?

Sjögren's syndrome is an autoimmune disease that makes your glands produce less moisture than they should. It causes chronic (long-term) dryness throughout your body, especially in your eyes and mouth. Sjögren's syndrome is pronounced “SHOW-gren's syndrome.”

What parasites cause B12 deficiency?

D. latum competes with the host for vitamin B12 absorption, absorbing some 80% of dietary intake and causing deficiency and megaloblastic anaemia in some 40% of cases. Vitamin B12 uptake is enabled by the position of the parasite which usually lodges in the jejunum.

Who suffers most from B12 deficiency?

Being older than 75 years: People over 75 are more at risk for developing vitamin B12 deficiency because their bodies are often unable to fully absorb vitamin B12. Having a digestive system disorder: Digestive disorders can make it more difficult for your body to absorb vitamin B12.

What are the neurological symptoms of folate deficiency?

The neurologic manifestations of folate deficiency overlap with those of vitamin B12 deficiency and include cognitive impairment, dementia, depression, and, less commonly, peripheral neuropathy and subacute combined degeneration of the spinal cord.

Which fruit is highest in B12?

Bananas are a cheap, healthy, and nutrient-dense fruit that can easily become a part of every individual's diet. It is one of the best fruits rich in vitamin B12. Bananas also contain fibre and potassium. It helps manage blood pressure, reduce stress, and relieve constipation and ulcer problems.

What are the first signs of B12 deficiency?

Early warning signs of vitamin B12 deficiency often include persistent fatigue, weakness, pale or yellowish skin, and a sore, smooth tongue, alongside neurological symptoms like numbness or tingling (pins and needles) in hands and feet, and cognitive issues like memory problems or confusion; these signs develop slowly and worsen over time, affecting energy, mood, and nerve function. 

How much B12 is in 2 eggs?

Two large eggs provide a significant amount of vitamin B12, often around 1.4 to 2.7 micrograms, contributing a good portion (about 46%) of the daily recommended intake for adults (2.4 mcg), with most B12 concentrated in the yolk for better absorption. Eggs are a natural, nutrient-dense source of B12 and other essential B vitamins like riboflavin, making them a great addition to a balanced diet, especially for those eating animal products.
 

What are the symptoms of B12 deficiency in legs?

Vitamin B12deficiency symptoms may include:

• strange sensations, numbness, or tingling in the hands, legs, or feet.
• difficulty walking (staggering, balance problems)
• anemia.
• a swollen, inflamed tongue.
• difficulty thinking and reasoning (cognitive difficulties), or memory loss.
• weakness.
• fatigue.

What happens if your B12 is low for too long?

Key points about vitamin B12 deficiency anemia

Without enough red blood cells, your tissues and organs don't get enough oxygen. Without enough oxygen, your body can't work as well. Symptoms include weak muscles, numbness, trouble walking, nausea, weight loss, irritability, fatigue, and increased heart rate.

Can stress and anxiety cause B12 deficiency?

Stress is known to deplete our levels of B vitamins, especially vitamin B12. Vegetarians, vegans and those on restricted diets can struggle to get enough vitamin B12 to meet their body's needs.

What medications cannot be taken with B12?

You should be cautious taking Vitamin B12 with medications that reduce stomach acid (like omeprazole, famotidine, ranitidine), diabetes drugs (Metformin), gout medicine (Colchicine), some antiseizure drugs (phenytoin, carbamazepine), or aminosalicylic acid, as these can decrease B12 absorption; also avoid taking it with high-dose Vitamin C supplements as they can interfere. Always consult your doctor or pharmacist about potential interactions when taking B12 supplements.
 

What organ absorbs vitamin B12?

The absorption of vitamin B12in the small intestine from the dietary intake requires an adequate supply of intrinsic factor. In man, the only apparent gastrointestinal source of intrinsic factor is the gastric mucosa.

What is the best form of B12 to take?

The best form of B12 depends on your needs, but methylcobalamin (MeCbl) and adenosylcobalamin (AdCbl) are naturally occurring, easily used forms, while cyanocobalamin (CNCbl) is synthetic but stable and effective for most, especially for general supplementation. For those with specific genetic issues or needing targeted support, a blend of MeCbl and AdCbl might be better, while CNCbl is often the most budget-friendly option, though some prefer MeCbl for nerve health and sleep benefits.