Vitamin B12

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  • All the vitamins you want, when you need them.
  • Free shipping on orders over $20.
  • Adjust your subscription as your health needs change.
  • Easy cancellation, no commitments.

Vitamin B12

  • Improve brain and nerve function
  • Enhance red blood cell formation
  • Boosts energy production in the body

$4.00 30 Day Supply

Find other vitamins that fit your health goals with our 3 minute health assessment.

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Subscription Benefits

  • All the vitamins you want, when you need them.
  • Free shipping on orders over $20.
  • Adjust your subscription as your health needs change.
  • Easy cancellation, no commitments.

Take our health assessment to get product recommendations (that fit your health goals)

Browse and select the vitamins you want.

We put your vitamins in 30 personalized daily packs.

Delivered to your door every 30 days.

Vitamin subscriptions made easy, learn more about how it works.

What is Vitamin B12?

One of the essential vitamins your body needs is Vitamin B12. This water-soluble vitamin is found naturally in some foods and also added to others. It's also available as a dietary supplement and as an injectable medication. Vitamin B12 is important for a healthy nervous system, for the formation of red blood cells, and for the metabolism of carbohydrates and proteins.

Read More About Vitamin B12 and How It Works
What does Vitamin B-12 do for the body?

Your body needs Vitamin B12 to make DNA, the genetic material in all cells. Vitamin B12 also helps keep your nerve cells and red blood cells healthy. It's especially important for pregnant women and their developing babies. Vitamin B12 is also needed to help convert food into energy.

How much Vitamin B12 should I be taking per day?

The National Institutes of Health recommends 2.4 micrograms of Vitamin B12 per day. Most daily supplements contain 5 mg or 5,000 mcg. Since it is a water soluble vitamin, excess amounts are not harmful and will pass in your urine.

How do I get Vitamin B12?

Most people get enough Vitamin B12 from the foods they eat. The best sources of vitamin B12 are animal-based foods, such as meat, poultry, fish, and dairy products. Fortified breakfast cereals and some plant-based milk also contain Vitamin B12.

Getting Your Vitamin B12 Intake Is Easy With VitaRx.

Here’s How it Works with Three Easy Steps

  • Get recommendations or design your own pack.
    Take our 3-minute health assessment and get product recommendations that fit your health goals. Or if you already know what vitamins and supplements you want to take, browse our products and create your own personalized pack.
  • We Deliver.
    Every month, we will send you 30 daily personalized vitamin packs in an awesome dispenser box with the products you selected. Free shipping on orders over $20!
  • Adjust as you go.
    You can easily change the vitamins and supplements in your subscription as your health needs change. No contracts. No commitments. No strings attached.
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Vitamin B12 Benefits

There are many benefits to taking a Vitamin B12 supplement. Below, you'll learn more about its importance and how it can affect your body.

  • Improves Energy Production:
    If you're deficient in Vitamin B12, you may experience symptoms such as fatigue, weakness, constipation, and anemia. Taking a Vitamin B12 supplement can help improve these symptoms because it helps with energy production.
  • Enhances Brain Function:
    Vitamin B12 is necessary for the proper function of your nervous system, including your brain. It helps keep your nerve cells healthy and is an essential component of DNA.
  • Supports Mood Regulation:
    A growing body of evidence suggests that Vitamin B12 may support mood regulation. It's essential for the production of serotonin, a neurotransmitter that's involved in mood regulation.
  • Prevents Anemia:
    Anemia is a condition that develops when the body doesn't have enough red blood cells. Vitamin B12 helps keep your red blood cells healthy.
  • Assists With Red Blood Cell Formation:
    This vitamin boosts red blood cell production so that your body can function optimally.

Read More About the Benefits of Vitamin B12

Vitamin B12 Deficiency

Being Vitamin B deficient can be caused by a lack of Vitamin B12 in your diet, having issues with absorption, or having issues with the body's ability to use Vitamin B12.

What Causes a Vitamin B12 Deficiency?

A Vitamin B12 deficiency occurs when your body doesn't get enough B12 from your diet. Your body needs B vitamins to make red blood cells and DNA, as well as keep your nerves and cells working properly.

  • Lack of Vitamin B12 in diet: Those who don't eat enough foods with B12 may develop a deficiency.
  • Gastritis: This occurs when the stomach lining is inflamed, making it difficult for the body to absorb Vitamin B12.
  • Digestive diseases: There are some digestive diseases that interfere with B-12 absorption. This can include celiac disease or Crohn's disease.
  • Alcohol misuse disorder: Because this disorder causes damage to your digestive system, it can cause a deficiency.
  • Surgery: Following gastrointestinal surgery, patients may have difficulty absorbing Vitamin B.
What Foods Have Vitamin B12?

For the most part, B12 is found in animal products. But there are plant-based sources in case you don't consume them.

  • Animal Products: Meat, poultry, fish, eggs, and dairy are great sources of this vitamin.
  • Plant-Based Products: For those who don't consume animal byproducts, plant foods that are rich in Vitamin B12 include mushrooms, nutritional yeast, plant milk, and fortified products such as cereals and soy products.

What Should I Look for in Vitamin B12?

There are many things you should look for when choosing a Vitamin B12 supplement. The most important factor is that the supplement contains methylcobalamin, the biologically active form of Vitamin B12. Other important factors include the dosage, form, and purity of the supplement. Here are some essential factors to remember to ensure you get the most B12 concentration out of your supplement.

  • Dosage: As an essential nutrient, the body's B12 levels need to be replenished daily from diet and supplementation. Try to keep your daily intake of B12 at least at 2.4 mcg. Learn more
  • Type: There are five different types of B12 that are available on the market. They are cyanocobalamin, hydroxocobalamin, methylcobalamin, adenosylcobalamin, and deoxyadenosylcobalamin. Make sure your supplement has any of these forms of B12. Learn more
  • Pairs Well With: B vitamins typically work well with folate. This is because folate helps the body with cell production. Learn more
  • Quality: Choose products with third-party safety and quality certifications, like the U.S. Pharmacopeial Convention (USP) or NSF International. This will ensure that you're getting the amount of Vitamin B12 on the label without any unwanted ingredients and additives. Learn more
  • Manufacturing Process: Look for products that come from brands that adhere to the Food and Drug Administration's (FDA) Current Good Manufacturing Practices (CGMPs). Learn more

Why VitaRx's Vitamin B12 Supplement Is the Right Choice for You

To develop our products, we teamed up with nutritionists with extensive experience in vitamins, minerals, supplements, and overall nutrition. We carefully research the final product and all the ingredients that go into it to provide the highest-quality vitamins.

  • Smarter Formulas:
    Each of our vegetarian B12 capsules contains roughly 5 mg to ensure you meet your recommended daily intake.
    Amount of Pills
  • Better Ingredients:
    We combine our B12 supplements with calcium and other nutrients to promote a healthy metabolism. This is an essential nutrient.
  • Sustainably Manufactured
    Our supplements are manufactured sustainably and encapsulated in the United States in a facility that adheres to U.S. FDA Good Manufacturing Practices (GMP) regulations and Natural Products Association (NPA). 
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Vitamin B12 actual size


Vitamin B12

Product Type
Vitamin B12 iconCapsule
Serving Size
1 Vegetarian Capsule
  • 5 mg Methylcobalamin

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Dietary Info:
Egg free dairy free Gluten free tag nuts free GMO free vegan vegetarian Soy free dietary info 

More Questions You Have About Vitamin B12, Answered

Our library of expert-authored articles covers just about every question you might have about vitamins, minerals and supplements — along with some you might not have known you had.

What is the treatment for high Vitamin B12 levels?

People who maintain B12 blood levels of above 900 pg/mL have abnormal levels. This could indicate liver or kidney problems, diabetes, or some forms of leukemia and should see a doctor.

When is the best time to take Vitamin B12?

The best time to take B vitamins is in the morning because it can affect your sleep. B12 is best taken with water because it's a water-soluble vitamin. It doesn't matter if you take it on an empty stomach or with a meal.

How do you take Vitamin B12?

The best way to take Vitamin B12 is by mouth. It can be taken in the form of a pill, liquid, or spray. You can also get a B12 shot if you have a deficiency.

How important is Vitamin B12?

Vitamin B12 is essential for the normal functioning of your body. It helps keep your nervous system healthy and can also help to prevent anemia. Additionally, this B vitamin is important for energy and can help you to stay energized throughout the day.

    Alright, What’s the Catch? (Spoiler Alert: There isn’t One)

    How does my subscription work?

    It's simple. Every month we'll send you a beautiful dispenser box with 30 daily vitamin packs inside. You can customize your order at any time and we'll send you a reminder email a few days before we start to prepare your pack.

    How do I choose what goes in my vitamin packs?

    Take our health quiz! We will recommend what you should be taking based on your health needs and it only takes 3 minutes. Or pick and choose as you please. You can add vitamins to your subscription directly from our product page or take the assessment and add the vitamins recommended to you.

    Can I skip a month, make changes or cancel my subscription anytime?

    Absolutely. To skip a month, make changes or cancel your subscription simply login to your account. There are no contracts, no commitments and you can edit your subscription each month as you go.

    Can I get just one month’s worth of product?

    Because we want to give you a hassle-free and consistent vitamin routine, we do not offer single orders at this time. However, you are able to purchase a subscription and then cancel before the next shipment is placed if you don't want next month's order.

    How much will my subscription cost? Any hidden fees?

    You can see the cost of your pack by looking at your cart and going to the checkout. The price of your personalized packs will depend on what you chose to go in them (we think we do a good job keeping our prices very competitive). There are no hidden fees and the price you see on the checkout page is what you pay. For orders over $20, shipping is free!

    Why should I try VitaRx?

    Nutrients tailored to you. VitaRx makes taking care of your health easy. By taking our 3 minute health assessment, we lay out a personalized health plan with all the vitamins, minerals, and supplements you need to feel your best. No guesswork. Every month, we send you a fun vitamin box filled with 30 convenient daily packs to keep you on track of your health routine. There are no commitments and you can cancel at any time!

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