Is there a downside to taking B12?

High doses of vitamin B-12, such as those used to treat a deficiency, might cause: Headache. Nausea and vomiting. Diarrhea.

Who should not take B12 supplements?

What damage can vitamin B12 do?

A lack of vitamin B12 can cause neurological problems, which affect your nervous system, such as: vision problems. memory loss. pins and needles (paraesthesia)

Is it OK to take 1000 mcg B12 daily?

If you are low in vitamin B12, a common recommended dose for oral supplements is about 1,000 mcg daily. But you should make sure to ask your healthcare provider about how much vitamin B12 you should look for in a supplement.

What happens when you start taking B12?

May give you an energy boost

On the other hand, if you're significantly deficient in vitamin B12, taking a supplement or increasing your intake will likely improve your energy level ( 32 ). In fact, one of the most common early signs of vitamin B12 deficiency is fatigue or lack of energy ( 2 ).

8 Signs You May be Vitamin B12 Deficient.

What happens if your B12 is too high?

In some people, high levels of B12 may cause gastrointestinal problems such as bloating and diarrhea. And if you have high blood pressure or poor cardiovascular health, having too much B12 may further complicate these issues. Pregnant and breastfeeding women may also need to be especially mindful of B12 levels.

How do you feel after taking B12?

The most common B12 shot side effect is swelling at the injection site. Some people also experience mild diarrhea. Call your doc ASAP if you notice any negative B12 shot side effects.

Should I take B12 everyday?

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.

Can B12 cause neuropathy?

B12 deficiency may cause demyelination of nerves in the peripheral and central nervous system¹³ and has been associated with peripheral neuropathy, loss of sensation in peripheral nerves, and weakness in lower extremities in older adults^{1, 14–16}.

How long should I take B12 supplements?

You may be able to stop taking cyanocobalamin when your vitamin B12 blood levels are back to normal. However, you may need to take it for the rest of your life if your diet does not have enough vitamin B12 or you cannot absorb enough vitamin B12 from your food.

What are the warning signs of vitamin B12 deficiency?

What does low B12 feel like?

Constipation, diarrhea, loss of appetite, or gas. Nerve problems like numbness or tingling, muscle weakness, and problems walking. Vision loss. Mental problems like depression, memory loss, or behavioral changes.

Does vitamin B12 affect your brain?

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.

Does B12 supplement raise blood pressure?

The lowering effects of vitamin B12 together with folic acid on blood pressure have been reported in intervention study in adults. However, no study has reported the association of vitamin B12 by itself with systolic or diastolic blood pressure in children or in adults.

Who is most at risk for vitamin B12?

Does B12 elevate blood pressure?

Foods high in vitamin B12

Vitamin B12 deficiency can cause anemia which is one of the most common causes of low blood pressure. Adding more vitamin B 12 can help you fight several health issues as well as low blood pressure.

Can B12 cause tingling in feet?

Tingling hands or feet

Vitamin B-12 deficiency may cause “pins and needles” in the hands or feet. This symptom occurs because the vitamin plays a crucial role in the nervous system, and its absence can cause people to develop nerve conduction problems or nerve damage.

Can too much B12 cause tingling in hands and feet?

Tingling sensation or Numbness

This symptom is one of the early warning indicators of Vitamin B12 overdose.

What vitamin is good for tingling feet?

Vitamins B-1, B-6, and B-12 have been found to be especially beneficial for treating neuropathy. Vitamin B-1, also known as thiamine, helps to reduce pain and inflammation and vitamin B-6 preserves the covering on nerve endings.

Is it worth taking vitamin B12?

There are very few reasons to take supplements, but getting enough of this vitamin may be one of the most important. Vitamin B12 may not be high on your nutritional radar, yet it is essential to some of the body's most important functions, like forming red blood cells and maintaining nerve function.

Is taking B12 supplement good for you?

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.

Does B12 give you energy?

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.

How long does it take for B12 to start working?

B12 injections work quickly; they are the most effective way for your body to absorb Vitamin B12. Within 48 to 72 hours, your body will begin to make new red blood cells. For mild deficiencies, you may need two to three injections over several weeks to notice peak impact.

Why do I feel tired after B12?

It actually helps give you more energy, rather than making you tired. If you do notice feeling a little fatigued, even though you're regularly taking a B-12 supplement, it's likely a sign of something else that is out of the norm in your body. Go see your doctor to get the proper diagnosis and treatment.

Does vitamin B12 cause weight gain symptoms?

In most cases, taking a B vitamin will not lead to weight gain. However, people who are deficient in vitamin B12 might notice the scale creep upwards once they start supplementing. That's because loss of appetite is a symptom of vitamin B12 deficiency.