Is 8000% B12 too much?
No Tolerable Upper Intake Level (UL) has been established for B12, due to its low level of toxicity. While this may be true to an extent, it’s essential to note that taking too much of specific vitamins can cause fatigue. For example, vitamins B6 and B12 play a key role in energy metabolism. However, taking large doses of these vitamins can also cause fatigue and other symptoms such as headaches, diarrhea, and nausea.Key points about vitamin B12 deficiency anemia Symptoms include weak muscles, numbness, trouble walking, nausea, weight loss, irritability, fatigue, and increased heart rate. Treatment may include vitamin B12 supplements. It is also important to eat a well-balanced diet.The Mood-Enhancing Benefits of B12 Beyond its energy-boosting effects, B12 also influences the production of brain chemicals like serotonin and dopamine – neurotransmitters responsible for mood regulation. Low B12 levels have been linked to symptoms of depression, irritability, and anxiety.Fortunately, B12 doesn’t cause permanent harmful effects if you have too much of it. Symptoms are rare, though they can be unpleasant. But they’ll go away if you don’t get more B12 than your body can process. And it’s common for people to have high B12 levels with no symptoms.Vitamin B12 deficiency can cause physical, neurological and psychological symptoms. Physical symptoms can include: Feeling very tired or weak. Experiencing nausea, vomiting or diarrhea.
Is 5000 mg of B12 too much to take daily?
The recommended daily amount for vitamin B12 intake is 2. Pregnant and lactating women need higher amounts [1]. There is no upper intake limit for vitamin B12 because there is no known toxicity [2]. Most vitamin B12 supplementation provides a range of strengths between 500 to 5000 mcg [2]. Oral administration of high-dose vitamin B12 (1 to 2 mg daily) is as effective as intramuscular administration for correcting anemia and neurologic symptoms. Intramuscular therapy leads to more rapid improvement and should be considered in patients with severe deficiency or severe neurologic symptoms.If you have low vitamin B12 level for a long time, it can cause nerve damage. Symptoms of nerve damage include: Numbness and tingling of hands and feet. Loss of balance.A good source of B12, such as an apple, banana, blueberry, or eggs, should be added to improve B12 levels over time. However, for short-term improvements in your levels, you should start with medication.If you eat eggs, they can be a good source of vitamin B12. One hard-boiled egg has about 0. B12. That’s 25% of how much you should get per day. Of course, you’ll need to eat the whole egg to get the vitamin B12, as most of it comes from the yolk.
How do you feel if your B12 is too high?
Most people taking too much B12 will probably not experience symptoms. Early signs of too much B12 include mild diarrhea and itching. Severe symptoms (usually from injectable B12) may include: low potassium, heart failure, blood clots, or fluids buildup in the lungs. The other mental changes associated with B12 deficiency include apathy, agitation, impaired concentration, insomnia, persecutory delusions, auditory and visual hallucinations, and disorganized thought-process. Besides serum vitamin B12, plasma methylmalonic acid (MMA) and homocysteine helps in diagnosis.Diet. Some people can develop a vitamin B12 deficiency as a result of not getting enough vitamin B12 from their diet. A diet that includes meat, fish and dairy products usually provides enough vitamin B12, but people who do not regularly eat these foods can become deficient.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.Stage 1: decreased levels of vitamin B12 in your blood. Stage 2: low levels of vitamin B12 in your cells along with metabolic abnormalities. Stage 3: neurological and psychological symptoms like anxiety, confusion, problems with balance, and others.Symptoms of vitamin B12 or folate deficiency A deficiency in either of these vitamins can cause a wide range of problems, including: extreme tiredness.
Can I take 10,000 mg of B12?
Healthcare professionals have not identified an upper-limit blood level of vitamin B12. The body will typically excrete excess vitamin B12 that a person consumes via their diet or supplements. The body does not absorb vitamin B12 supplements very effectively. Dosage. Take 1000-5000mcg daily of the active forms of B12 (methyl-cobalamin and adenysl-cobalamin) for 1 month and then re-assess symptoms. Vitamin B9 (folate) and vitamin B6 work together with B12, supplementing these at the same time often gives better results.If your vitamin B12 deficiency is caused by a lack of the vitamin in your diet, you may be advised to take vitamin B12 tablets every day between meals. Or you may need to have an injection of hydroxocobalamin twice a year.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.Vitamin B12 is stored in excess in the liver, decreasing the likelihood of deficiency. However, in cases in which vitamin B12 cannot be absorbed, for example, due to dietary insufficiency, malabsorption, or lack of intrinsic factor, hepatic stores are depleted, and deficiency ensues.Hydroxocobalamin starts to work straight away. However, it may take a few days or weeks before your vitamin B12 levels and symptoms (such as extreme tiredness or lack of energy) start to improve.
How much vitamin B12 is needed for energy?
People with very low vitamin B-12 levels can have symptoms such as fatigue, muscle weakness, stomach problems, nerve damage, vision problems and mood changes. They also may have low iron, called anemia, or low blood counts. The recommended daily amount of vitamin B-12 for adults is 2. You should be able to get all the vitamin B12 you need by eating a varied and balanced diet. If you take vitamin B12 supplements, do not take too much as this could be harmful. Taking 2mg or less a day of vitamin B12 in supplements is unlikely to cause any harm.Vitamin B-12, or cobalamin, is a nutrient you need for good health. It’s one of eight B vitamins that help the body convert the food you eat into glucose, which gives you energy.Some provide doses of vitamin B12 that are much higher than recommended amounts, such as 500 mcg or 1,000 mcg, but your body absorbs only a small percentage of it. These doses are considered safe.Oral Supplements Timeline The body requires enough time to absorb sufficient supplement levels from oral sources, particularly when the deficiency reaches severe levels. The effects of oral B12 vitamins become visible after a minimum period of 2 to 4 weeks.The recommended daily amount of vitamin B-12 for adults is 2. Older adults may need to eat more vitamin B-12. The ability to absorb vitamin B-12 lowers as a person gets older. Older adults may need to eat 10 to 12 mcg of vitamin B-12 to get enough of this vitamin.
Can too much B12 damage kidneys?
Typically, excess vitamin B12 exits the body through urine and does not pose serious toxicity concerns. However, there is some research that indicates those with kidney function loss due to diabetes may experience quicker kidney deterioration when they take high doses of vitamin B supplements. Both vitamin B12 and folic acid function in counteracting this toxicity; however, B12 is somewhat more effective. Addition of 6 or 9% glycine to the diet increased blood uric acid levels. Folic acid tended to decrease these high levels of uric acid in the blood.