Safety and side effects. When taken at appropriate doses, vitamin B-12 supplements are generally considered safe. While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine ...
What is vitamin B12 and what does it do? Vitamin B12 is a nutrient that helps keep your body's blood and nerve cells healthy and helps make DNA, the genetic material in all of your cells. Vitamin B12 also helps prevent megaloblastic anemia, a blood condition that makes people tired and weak.
Vitamin B12 is an essential nutrient. Fish, shellfish, meat, eggs, and dairy products are good sources of vitamin B12. The amount that should be consumed on a daily basis is called the recommended dietary allowance (RDA). The RDA is 2.4 mcg daily for people 18 years and older.
Vitamin B12 is an essential nutrient that must be ingested daily because our bodies don't naturally produce it. B12 is important for many enzymatic processes, such as helping turn the food you eat into usable energy. The recommended daily amount for B12 is 2.4 mcg for adults.
Diet-related
People who find it difficult to get enough vitamin B12 in their diets, such as those following a vegan diet, may need vitamin B12 tablets for life.
You may feel tired and weak. High amounts of vitamin B12 can also cause you to feel like your hands and feet are tingling. Some studies suggest that taking 25 mcg or more per day might increase your risk of bone fractures. Vitamin B12 injections should only be used to treat severe deficiencies.
Once you begin treating your vitamin B12 deficiency, it can take up to six to 12 months to fully recover. It is also common to not experience any improvement during the first few months of treatment. If you can, it's a good idea to address what's causing the deficiency.
So does vitamin B12 give you energy? While B12 doesn't directly provide energy, it does give the body the tools it needs to convert food molecules into energy. Getting the recommended daily amount of B12 can therefore help ensure that the body is able to make the energy it needs to do everything you need it to do.
Anticonvulsants -- include phenytoin (Dilantin), phenobarbital, primidone (Mysoline) Chemotherapy medications -- particularly methotrexate. Colchicine -- used to treat gout. Bile acid sequestrants -- used to lower cholesterol; include colestipol (Colestid), cholestyramine (Questran), and colsevelam (Welchol)
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.
Some combinations should be avoided, even if they aren't inherently problematic. For example, although it's safe to take vitamin D with vitamin B12, it's not advisable, says Virgilio Sanchez, MD, a board certified family medicine physician at Conviva Care Center in Miami, Florida.
If you have low vitamin B12 level for a long time, you can have nerve damage. Symptoms of nerve damage include: Confusion or change in mental status (dementia) in severe cases. Problems concentrating.
Vitamins B9 and B12 are both thought to treat symptoms of anxiety. Folic acid has many uses in the body, and B9 deficiency has been linked to higher levels of anxiety and depression. When taken in conjunction with B12, these B super-vitamins help metabolize serotonin, which is important for mood regulation.
It has been found that the vitamin works directly on the brain to help induce sleep. Vitamin B12 benefits have been demonstrated to help patients with sleep disorders, such as insomnia, who have difficulty falling asleep. It has also been shown to improve sleep in healthy individuals depending on the dose that is used.
“Take water-soluble vitamins on an empty stomach with a glass of water,” recommends Dr. Perez-Gallardo. And since it can be energizing, Dr. Perez-Gallardo says that the best time to take vitamin B12 is in the morning, so it won't affect your sleep.
Vitamin B-12 and other B vitamins play a role in producing brain chemicals that affect mood and other brain functions. Low levels of B-12 and other B vitamins such as vitamin B-6 and folate may be linked to depression.
Stage 1 is decreased levels of vitamin B12 in the blood. Stage 2 is low concentration of vitamin B12 in the cell and metabolic abnormalities. Stage 3 is increased levels of homocysteine and MMA and decreased DNA synthesis resulting in neuropsychiatric symptoms. Stage 4 is macrocytic anemia.
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.
Inadequate dietary intake
A balanced diet typically provides sufficient vitamin B12; however, strict vegans and people with a poor diet are at higher risk of developing a deficiency. Good sources of vitamin B12 include: Meat. Fish.
Vitamin B-12 is a water-soluble vitamin that plays an important role in the health of older adults. Vitamin B-12 is involved in making DNA, red blood cell formation, and proper nerve function1. While more research is needed, low vitamin B-12 levels have also been linked to increased bone fracture risk2.
It may take a few weeks before your vitamin B12 levels and symptoms (such as extreme tiredness or lack of energy) start to improve. If you have hydroxocobalamin injections to boost your vitamin B12 levels at the start of treatment, the cyanocobalamin tablets may start to work within a few days.
Vitamin B12 plays a critical role in the production of dopamine and serotonin, neurotransmitters that help regulate your mood. When you don't get enough B12 in your diet, or your body doesn't process it correctly, it can lead to mental health symptoms, such as depression, irritability, or anxiety.