Are There Any Side Effects Taking Vitamin B12?

Can b12 make you tired?

Constant fatigue is one of the main symptoms of a B12 deficiency, because when this vitamin is low, the body has fewer red blood cells.

The primary job of those red blood cells is to transport oxygen from the lungs to other parts of the body..

Is it OK to take 1000 mcg of b12 a day?

In one 8-week study in 100 older adults, supplementing with 500 mcg of vitamin B12 were found to normalize B12 levels in 90% of participants. Higher doses of up to 1,000 mcg (1 mg) may be necessary for some ( 10 ).

Does vitamin b12 make you gain weight?

Why a vitamin B12 deficiency is unlikely to affect your weight. Despite the numerous processes in which vitamin B12 is involved, there’s little evidence to suggest that it has any influence on weight gain or loss.

How much b12 should you take to lose weight?

The National Institutes of Health (NIH) recommends 2.4 micrograms (mcg) of vitamin B-12 per day for anyone over the age of 14. This recommended daily intake may also increase for those with decreased absorption. There’s no difference in the recommended intake for men and women.

How do you know if your b12 is low?

Weakness and fatigue are common symptoms of vitamin B12 deficiency. They occur because your body doesn’t have enough vitamin B12 to make red blood cells, which transport oxygen throughout your body. As a result, you are unable to efficiently transport oxygen to your body’s cells, making you feel tired and weak.

Which vitamin b12 is best?

The body may absorb cyanocobalamin better, while methylcobalamin has a higher retention rate. Both can prevent B12 deficiency, but methylcobalamin should be combined with adenosylcobalamin for best results.

Who will get the most benefit from a vitamin b12 supplement?

People over 50 should get most of their vitamin B12 from fortified foods or dietary supplements because, in most cases, their bodies can absorb vitamin B12 from these sources. People with pernicious anemia whose bodies do not make the intrinsic factor needed to absorb vitamin B12.

How much b12 should I take for nerve damage?

Left untreated, it can cause permanent nerve damage. Vitamin B-6 may help to maintain the covering on nerve endings. But it’s important that you don’t take more than 200 milligrams (mg) of B-6 per day. Taking higher amounts can lead to nerve damage and cause symptoms of neuropathy.

Can too much b12 cause acne?

Too much vitamin B12 may promote acne, according to a new study. The study found that, in the presence of vitamin B12, the skin bacteria that are commonly linked to acne start pumping out inflammatory molecules known to promote pimples.

What are the side effects of taking vitamin b12?

High doses of vitamin B-12, such as those used to treat a deficiency, might cause:Dizziness.Headache.Anxiety.Nausea.Vomiting.

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.

Does b12 help you lose weight?

Vitamin B12 is one of the essential B vitamins that help support a healthy nervous system. B12 works by converting the food we eat into sugar and other types of fuel that keep the body running smoothly. B12 is often associated with weight loss because of its ability to boost metabolism and provide lasting energy.

Does b12 help with belly fat?

The body relies on a variety of vitamins to maintain optimal health, and B12 is among the most important for weight management. If you want to lose excess weight, vitamin B12 is not only energy enhancing, it has also been linked to weight loss.

What is the best vitamin for belly fat?

A 2011 study found that overweight and obese adults taking calcium and vitamin D supplements lost significantly more stomach fat than people not taking any supplements. Food sources: While the sun is the best source of vitamin D, you can also get this vitamin from food, especially fortified foods.

Does vitamin b12 help hair growth?

One of those vital nutrients is B12, also known as cobalamin. B12 promotes healthy hair growth by assisting in the production of oxygen-rich red blood cells, which feed hair follicles. Your hair is made of a protein called keratin.

Does b12 make you poop?

Vitamin B-12 deficiency can cause constipation. If your constipation is caused by low levels of B-12, increasing your daily intake of this nutrient may help ease your symptoms.

What vitamins 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 it OK to take vitamin b12 at 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 much vitamin b12 should a person over 65 take?

Why Low Vitamin B12 Levels Are Common in Older Adults The recommended daily allowance for 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.

Do vitamin b12 tablets work?

A. Low B12 can cause anemia and fatigue. For many people with low B12 levels, a daily supplement in the form of a pill is as effective as taking a monthly muscle injection.

Does b12 help with memory?

Vitamin B-12 helps maintain healthy nerve cells and red blood cells. Vitamin B-12 deficiency — most common in older adults and vegetarians — can cause various signs and symptoms, including memory loss. In these cases, vitamin B-12 supplements can help improve memory.