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Posts Tagged ‘How much vitamin B12’

Vitamin B12- How Long Before I See Results?

Tuesday, May 7th, 2013

 

 

Many patients of vitamin B12 deficiency suffering from fatigue, memory loss, and brain fog want to know how long it will take for vitamin B12 to take effect, and for how long they will have to continue taking vitamin B12 supplements.

Vitamin B12- How Long Before I See Results?

Symptoms of vitamin B12 deficiency

Vitamin B12 is important for sustaining healthy red blood cells and nerve cells, and also for converting food into energy. Symptoms of vitamin B12 deficiency may include extreme tiredness, poor concentration, memory loss, dizziness, and disorientation.

And those are just the initial symptoms; after several years, severe vitamin B12 depletion can cause significant damage to the nervous system, and also increase your risk for stroke, heart attack, and osteoporosis. Often, untreated vitamin B12 deficiency results in pernicious anemia, a once fatal disease.

There are many unusual symptoms associated with vitamin B12 deficiency, and most will disappear once you have been taking vitamin B12 long enough to get your stores up to a normal amount, and have maintained stable levels of vitamin B12.

Symptoms of vitamin B12 deficiency may include:

  • Extreme fatigue
  • Dizziness
  • Depression
  • Anxiety
  • Short-term memory problems
  • Confusion
  • Headaches
  • Tinnitus (ear ringing)
  • Sore red tongue
  • Painful numbness and tingling in the arms and legs
  • Constipation
  • Diarrhea
  • Muscle weakness
  • Muscle spasms
  • Difficulty walking
  • Poor motor skills
  • Infertility
  • Heart palpitations
  • Feeling out of breath

40 Symptoms of Vitamin B12 Deficiency: the Ultimate Checklist

 

How long does vitamin B12 take to work?

If you begin early on, then you should start seeing results from vitamin B12 before long, depending on how much vitamin B12 you need in order to achieve a normal level.

Normal vitamin B12 levels are about 200 – 900 pg. /mL, but it’s not unusual to experience symptoms even if you are within the normal range.

Some people start to feel better, more energetic, immediately; others don’t notice improvements in memory or mood problems for a few weeks. Still others may not experience any relief for several months.

There is really no accurate way of measuring exactly how long it will take for vitamin B12 to help your body build new red blood cells, begin healing damaged nerve cells, or boost energy levels.

Most vitamin B12 is stored in the liver, and it took years for B12 levels to drop to the point that you started noticing the symptoms of B12 deficiency, so it’s important to be patient, and give your body enough time to slowly accumulate vitamin B12 in the bloodstream.

How much vitamin B12 do I need?

A standard dose of vitamin B12 contains 1,000mcg. Some vitamin B12 deficiency patients require 1,000mcg doses daily, weekly, or monthly. You need to continue taking vitamin B12 for life, especially if you are unable to absorb it naturally from the foods you eat.

Fortunately, there’s no way of taking “too much vitamin B12” because all amounts are completely safe, and many people even benefit by taking extra doses of non-dietary vitamin B12 between doctor visits.

There have been many studies associating mega-vitamin B12 doses with increased energy, healthy mental focus, and improved allover feeling of wellness.

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Like this? Read more:

Will Vitamin B12 Boost Energy if I don’t have B12 Deficiency? YES!

Vitamin B12 for Fibromyalgia- How Much do you Need?

Image courtesy of Sura Nualpradid/Free Digital Photos

Vitamin B12- How Much in Enough?

Wednesday, November 7th, 2012

 

 

Once diagnosed with vitamin B12 deficiency, you may have questions regarding how much vitamin B12 you need to “get better,” to stop “feeling tired” all the time, or how long to keep taking vitamin B12 supplements.  Here are some answers to FAQ regarding how much vitamin B12 you need.

Vitamin B12- How Much in Enough? B12 Patch

Note: Always consult your doctor before reducing or stopping vitamin B12 supplementation, as the risk for severe nerve damage from long-term vitamin B12 deficiency is significant.

How much vitamin B12 do I need?

Health experts differ on the amount of vitamin B12 supplementations you need to take.

The short answer is that is varies; healthy individuals who don’t have relevant health problems need not worry about developing vitamin B12 deficiency, as your body is able to store a large amount of vitamin B12 (cobalamin) for years.

The recommended daily allowance (RDA) for healthy adults is minimal- a scant few mcg of vitamin B12 per day.  These guidelines are based on the understanding that most people are able to digest vitamin B12 easily from food sources, which include beef, chicken, fish, eggs, and cheese.

However, recent studies argue the benefits of taking much more vitamin B12, in order to increase energy, prevent vitamin B12 deficiency, or replenish vitamin B12 levels.

To improve mental focus, restore stamina, and alleviate symptoms of vitamin B12 deficiency, doctors recommend 1000mcg -3000mcg vitamin B12 to be taken weekly or monthly, depending on the severity of ailments, or as desired for feelings of wellbeing.

Related: Will Vitamin B12 Boost Energy if I don’t have B12 Deficiency? YES!

What’s the standard dose for vitamin B12?

Most doses of vitamin B12 include 1000mcg cobalamin, to be administered at your doctor’s recommendation.

However, many patients find that they need much more vitamin B12 than their health insurance providers are willing to endorse. This is not because of any safety guidelines, as there is no FDA-designated “upper limit” for vitamin B12…

…Meaning that it is perfectly safe to use as much vitamin B12 as you need in order to start feeling better.

As a result, many vitamin B12 deficiency patients opt to take over-the-counter (OTC) vitamin B12 supplements, for usage in addition to vitamin B12 injections or sometimes, in place of monthly vitamin B12 shots.

When can I stop taking vitamin B12 supplements?

If you’ve been diagnosed with vitamin B12 deficiency as a result of malabsorption issues, then you may be required to take vitamin B12 supplements for life.

As for how much vitamin B12 you’ll require, that number may become smaller once the signs of vitamin B12 deficiency- fatigue, dizziness, and numbness-have disappeared.

Please tell us…

Do you have any questions or suggestions?  Please leave your comments below.

Share with your friends!

If you found this article helpful, then please share with your friends, family, and coworkers by email, Facebook, or Google+.

Like this? Read more:

I have Fibromyalgia…Which Supplements should I take?

Can Too Much Vitamin B12 be Harmful? 5 Vitamins to Watch Out for

Sources:

Vitamin B12 level: MedlinePlus Medical Encyclopedia

Vitamin B12 Level – Tests, Test Results & Diagnosis – NY Times Health Information

Vitamin B12: Dosing – MayoClinic.com

Oral cyanocobalamin supplementation in older people with vitamin B12 deficiency: a dose-finding trial- PubMed NCBI

Learn More about Vitamin B12 Deficiency.

USDA: National Nutrient Database for Standard Reference: B-12

Image(s) courtesy of FreeDigitalPhotos.net

Can Too Much Vitamin B12 be Harmful? 5 Vitamins to Watch Out for

Tuesday, March 13th, 2012

 

 

Is it possible to get too much of a good thing, like too much vitamin B12, or too much of any vitamin, for that matter?  Experts say yes- overdoing it on certain vitamins can cause vitamin toxicity, and the damage can range from annoying to severe.  So before you down a bottle of vitamin C for immune system health, have a look at what health experts have to say about vitamin B12 and others.

Vitamin B12- How much do you need?

VITAMIN TOXICITY: CAN TOO MUCH VITAMIN B12 BE HARMFUL? B12 PATCH


Vitamin B12- What is it?

Vitamin B12 (cobalamin) is a water-soluble vitamin that occurs naturally in animal-based foods like beef, chicken, fish, eggs, and milk.  Vitamin B12 supports many vital bodily functions, like shielding your nerve cells through myelin production, maintaining healthy red blood cells, aiding in DNA synthesis, enhancing cognitive functioning, and increasing stamina.

If you don’t have enough vitamin B12 in your blood, then you may get vitamin B12 deficiency, which causes symptoms like

  • fatigue
  • depression
  • frequent forgetfulness
  • brain fog
  • low attention span
  • painful “pins and needles” and numbness in the hands and feet
  • stomach problems
  • decreased motor control
  • muscular weakness
  • impaired walking

Vitamin toxicity

According to the Institute of Medicine’s list of Tolerable Upper Intake Levels, certain vitamins like vitamin B12 are safe to take in mega doses, while other vitamins must be used in moderation.  Taking too much of a certain vitamin may result in stomach discomfort, birth defects, or organ damage, according to many published studies.

Below is a list of vitamins, including recommended daily amount and risks of vitamin toxicity:

Vitamin B12

There is no upper limit for taking vitamin B12, according to the Institute of Medicine.  That means that you can experiment with as much vitamin B12 as you like without causing any damage.  Any amount that your body doesn’t use is excreted with your urine.

How much vitamin B12 do you need? Scientific evidence suggests that even people who don’t have vitamin B12 deficiency gain enormous health benefits- increased energy and mental alertness- by taking generous doses of vitamin B12.

  • One clinical study focusing on high-dose vitamin B12 found that taking 2,500-5,000 mcg of vitamin B12 every few days led to a 50%-80% increase in stamina, mental focus, and overall wellbeing after only a few weeks.
  • In a double-blind crossover study on vitamin B12 for treating tiredness, people who suffered daily fatigue but didn’t have vitamin B12 deficiency or chronic fatigue syndrome (CFS) experienced a boost of stamina, enhanced concentration skills, and improved mood after taking 5,000 mcg of vitamin B12 twice daily for two weeks.
  • Another study on people who didn’t have low vitamin  B12 levels resulted in similar findings with varied doses of vitamin B12, from 3,000 mcg four times per week to 9,000 mcg daily.

Also read: Will Vitamin B12 Boost Energy if I don’t have B12 Deficiency? YES!

Vitamin A

The upper limit for vitamin A supplementation is 3,000 IU for adult males and females.  Health experts strongly advise meeting your vitamin A requirement through dietary sources like eggs, fortified milk, and liver, as opposed to pill form.  Unless you have vitamin A deficiency, a risk factor for Crohn’s disease and celiac disease, there is no need to supplement with extra vitamin A.

VITAMIN TOXICITY: CAN TOO MUCH VITAMIN B12 BE HARMFUL? B12 PATCH

Vitamin A toxicity may result in:

  • Nausea
  • Vomiting
  • Dizziness
  • Headache
  • Blurred vision
  • Muscular weakness
  • Skin peeling
  • Liver fibrosis
  • Birth defects
  • Damage to the central nervous system
  • Osteoporosis
  • 18% increased risk for lung damage.

Vitamin C

The upper limit for vitamin C is 2,000 mg per day for adult males and females.  Food source of vitamin C include citrus fruits, broccoli, sweet potatoes, and bell peppers.  While vitamin C is essential for immune system health, there is inadequate scientific proof that taking extra amounts of vitamin C will help to ward off a cold or reduce cold symptoms.

VITAMIN TOXICITY: CAN TOO MUCH VITAMIN B12 BE HARMFUL? B12 PATCH

Vitamin C toxicity may result in:

  • Diarrhea
  • Stomach cramps
  • Nausea
  • Flatulence
  • Kidney stones

Vitamin D

The Institute of Medicine recommends taking no more than 100 IU of vitamin D per day, unless you have vitamin D deficiency.  While it is not possible to get too much vitamin D from sun exposure, taking excess vitamin D in pill form may cause vitamin toxicity.


VITAMIN TOXICITY: CAN TOO MUCH VITAMIN B12 BE HARMFUL? B12 PATCH

Vitamin D toxicity may result in:

  • Rapid uncontrolled weight loss
  • Polyuria (excess urine secretion)
  • Heart arrhythmias
  • Heart and kidney damage from excess calcium levels in the blood
  • Kidney stones

Vitamin E

The maximum daily dose of vitamin E is 1,000 IU for adult males and females.  Dieticians recommend getting your vitamin E from food sources like wheat germ, sunflower seeds, and broccoli, as opposed to taking vitamin E pills.

Can Too Much Vitamin B12 be Harmful? 5 Vitamins to Watch Out for

Vitamin E toxicity may result in:

  • Increased risk for hemorrhagic stroke
  • Osteoporosis

Please tell us…

Do you have vitamin deficiency, such as vitamin B12 deficiency or vitamin D deficiency? How has vitamin deficiency impacted your life, now that you have been diagnosed? Are you aware of any vitamin toxicity symptoms that are not included in this article?

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We love to hear from you…please feel free to leave comments, suggestions, or questions below!

Read more about vitamin B12 deficiency:

Tired of being Tired all the Time…It’s Tiring!

Diagnosing Vitamin B12 Deficiency and Pernicious Anemia: Top 10 Tests

What are the Symptoms of Pernicious Anemia- B12 deficiency?

Sources:

Dietary Reference Intakes (DRIs): Tolerable Upper Intake Levels, Vitamins

Dietary Supplement Fact Sheets

Vitamin B-12: placebo or neglected therapeutic tool?

A pilot study of vitamin B12 in the treatment of tiredness

Deficiencies You Can Deal With

Images:

YaiSirichai, winnond, Toa55, zirconicusso, healingdream

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