Is it OK to take 1000 mcg of B12 a day?
The most common treatment for pernicious anemia is lifelong vitamin B12 injections, but small amounts of vitamin B12 are absorbed without intrinsic factor. One review concluded that taking 1,000 mcg daily is an effective alternative to injections ( 41 ).
How much B 12 should you take a day?
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.
How much vitamin B12 should a person over 65 take?
What’s the recommended dosage of vitamin B12 for seniors? The recommended daily allowance of vitamin B12 for adults is 2.4 micrograms. Experts have estimated that a Western diet contains 5-7 micrograms of vitamin B12, and a multivitamin often contains 12-25 micrograms.
What is vitamin B12 good for?
Vitamin B12 is a nutrient that helps keep the body’s nerve and blood cells healthy and helps make DNA, the genetic material in all cells. Vitamin B12 also helps prevent a type of anemia called megaloblastic anemia that makes people tired and weak. Two steps are required for the body to absorb vitamin B12 from food.
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. Don’t take vitamin B-12 supplements if you have sensitivities or allergies to vitamin B-12, cobalt, and any other ingredients.
How long does it take for B12 supplements to work?
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.
How do I know if Im getting enough B12?
Symptoms of Vitamin B12 Deficiency Weakness, tiredness, or lightheadedness. Heart palpitations and shortness of breath. Pale skin. A smooth tongue. Constipation, diarrhea, loss of appetite, or gas. Nerve problems like numbness or tingling, muscle weakness, and problems walking. Vision loss.
Does B12 help you lose weight?
Low levels may be linked to obesity Interestingly, several studies have found that having adequate vitamin B12 levels may be associated with a lower risk of weight gain and obesity. According to one large study in 9,075 people, having higher blood levels of vitamin B12 was associated with a lower risk of obesity ( 6 ).
Can I take B12 twice a day?
Early research suggests that taking twice the recommended daily allowance of vitamin B12, with or without folic acid, does not reduce the risk of diarrhea in children.
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
Is vitamin B12 worth taking?
Vitamin B12 is a water-soluble vitamin that you must obtain through diet or supplements. It’s responsible for many bodily functions and may benefit your health in various ways, such as by preventing major birth defects, supporting bone health, improving mood and maintaining healthy skin and hair.
Does B12 raise blood pressure?
Vitamin B12 was significantly associated with blood pressure when folic acid intake was high and vice versa. Considering that folic acid and vitamin B12 act together as cofactors in converting homocysteine into methionine,6 folic acid, and vitamin B12 may have synergic effects on blood pressure or endothelial function.
Does B12 help with anxiety?
Vitamin B5 supports the adrenal glands, which reduces stress and anxiety levels. Vitamin B9 (also known as folate or folic acid) and vitamin B12 are important in balancing out depressive moods. Vitamin B6 together with magnesium can balance out anxiety that occurs in conjunction with PMS.
What vitamins Cannot be taken together?
Large doses of minerals can compete with each other to be absorbed. Don’t use calcium, zinc, or magnesium supplements at the same time.
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.