How long does it take B12 levels to decrease?
Unlike most other vitamins, B12 is stored in substantial amounts, mainly in the liver, until it is needed by the body. If a person stops consuming the vitamin, the body's stores of this vitamin usually take about 3 to 5 years to exhaust.
How do I lower my B12 levels?
Most people can prevent vitamin B12 deficiency by eating enough meat, poultry, seafood, dairy products, and eggs.
How much do B12 levels fluctuate?
Serum vitamin B12 levels can fluctuate significantly over time in the same individual. Median intraindividual variation is 23 percent (range: 0 to 119 percent). Absolute differences of more than 100 pmol/L have been seen in as many as 20% of patients during repeat testing.
Should I be worried if my B12 is high?
There is no upper limit for vitamin B-12 intake because consuming high levels does not cause problems. However, having naturally high levels of vitamin B-12 in the body may be a cause for concern, as it suggests a severe underlying condition.
Is B12 level of 1500 too high?
There is no consensus on the definition of high or elevated B12. Previous studies have chosen a variety of levels to represent high or very high B12 (pmol/l) levels. Some examples include: 664.219; 5131; 700 (high) and 1500 (very high)11; and 601 (high) and 1000 (very high)10.
What should I eat if my B12 is high?
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.
Dec 16, 2020
Why is my B12 so high?
The most common cause of high B12 in the blood is due to recent ingestion or injection of supplemental vitamin B12. We don't worry about overdosing on B12 supplements because excess can be excreted in your urine. It could also be possibly from your diet if high in animal products such as meat, eggs, and shellfish.
What are the symptoms of high B12 levels?
High doses of vitamin B-12, such as those used to treat a deficiency, might cause:
- Headache.
- Nausea and vomiting.
- Diarrhea.
- Fatigue or weakness.
- Tingling sensation in hands and feet.