Quick Answer: What Does Lack Of Vitamin B12 Cause?

What happens when your vitamin b12 is low?

Not having enough B12 can lead to anemia, which means your body does not have enough red blood cells to do the job.

This can make you feel weak and tired.

Vitamin B12 deficiency can cause damage to your nerves and can affect memory and thinking..

How can I raise my b12 levels fast?

To increase the amount of vitamin B12 in your diet, eat more of foods that contain it, such as:Beef, liver, and chicken.Fish and shellfish such as trout, salmon, tuna fish, and clams.Fortified breakfast cereal.Low-fat milk, yogurt, and cheese.Eggs.

Are there any side effects taking vitamin b12?

Safety and side effects While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, you can safely take higher doses. Your body absorbs only as much as it needs, and any excess passes through your urine. High doses of vitamin B-12, such as those used to treat a deficiency, might cause: Dizziness.

What should I eat to get vitamin b12?

Food. Vitamin B12 is naturally found in animal products, including fish, meat, poultry, eggs, milk, and milk products. Vitamin B12 is generally not present in plant foods, but fortified breakfast cereals are a readily available source of vitamin B12 with high bioavailability for vegetarians [5,13-15].

How long does it take to recover from b12 deficiency?

Recovery from vitamin B12 deficiency takes time and you may not experience any improvement during the first few months of treatment. Improvement may be gradual and may continue for up to six to 12 months.

Which fruit is rich in vitamin b12?

Dietary sources of vitamin B12Vitamin B12 FoodServing sizeB12 (mcg)Salmon3 ounces4.9Tuna, canned3 ounces2.5Beef3 ounces1.510 more rows•Dec 20, 2018

What is the best b12 supplement?

The best B12 supplement of 2020Best B12 supplements of 2020.Jarrow Formulas’ Methyl B12: A previous favorite that’s held onto the top spot due to its special methylcobalamin formulation that’s easier to absorb than other types.More items…•

How long does it take to get your b12 levels up?

A response usually is seen within 48 to 72 hours, with brisk production of new red blood cells. Once B12 reserves reach normal levels, injections of vitamin B12 will be needed every one to three months to prevent symptoms from returning.

What medications should not be taken with b12?

Certain medications can decrease the absorption of vitamin B12, including: colchicine, metformin, extended-release potassium products, antibiotics (such as gentamicin, neomycin, tobramycin), anti-seizure medications (such as phenobarbital, phenytoin, primidone), medications to treat heartburn (such as H2 blockers …

When should I take b12 morning or night?

You may need to take vitamin B-12 separately from the above drugs and supplements — say, one in the morning and one at night — so you can get the full dose of vitamin B-12.

What fruits and vegetables are high in vitamin b12?

The top vitamin B-12-rich foodsClams. 84.1 mcg per 3 ounces. … Beef liver. 70.7 mcg per 3 ounces. … Fortified breakfast cereals. 6.0 mcg per 1/2 cup. … Salmon. 4.8 mcg per 3 ounces. … Trout. 3.5 mcg per 3 ounces. … Milk. 1.2 mcg per cup. … Yogurt. 1.1 mcg per cup. … Ham. 0.6 mcg per 3 ounces.More items…•