Liquid B12

3,524 Reviews Scanned

In order to provide you with accurate and valuable pieces of information and reviews, we have conducted in-depth research for the best liquid b12 of 2024. In addition, you will find our top picks and highest-reviewed products in the section below.
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1 Nature's Bounty Vitamin B12 5000 Mcg Sublingual Liquid, Cardiovascular Health & Cellular Energy... Nature's Bounty Vitamin B12 5000 Mcg Sublingual Liquid, Cardiovascular Health & Cellular Energy... No ratings yet
2 Carlyle Vitamin B12 Sublingual | 10,000mcg | 2 fl oz | Vegetarian, Non-GMO, Gluten Free Liquid Drops Carlyle Vitamin B12 Sublingual | 10,000mcg | 2 fl oz | Vegetarian, Non-GMO, Gluten Free Liquid Drops No ratings yet
3 Vimergy USDA Organic B12, 30 Servings – Alcohol Free B-12 Liquid Vitamin - Supports Brain Energy,... Vimergy USDA Organic B12, 30 Servings – Alcohol Free B-12 Liquid Vitamin - Supports Brain...
4 VITBOOST Vegan Liquid B-12 Drops – 60 x 5000 mcg Extra Strength Raspberry Flavored Vitamin B12... VITBOOST Vegan Liquid B-12 Drops – 60 x 5000 mcg Extra Strength Raspberry Flavored Vitamin B12...
5 Pure Encapsulations B12 Liquid | 1,000 mcg Vitamin B12 (Methylcobalamin) Supplement to Support... Pure Encapsulations B12 Liquid | 1,000 mcg Vitamin B12 (Methylcobalamin) Supplement to Support... No ratings yet
6 (2 Pack) Vitamin B12 Liquid Drops, Vegan B12 Sublingual 5000 mcg, Methylcobalamin B12, Liquid B12... (2 Pack) Vitamin B12 Liquid Drops, Vegan B12 Sublingual 5000 mcg, Methylcobalamin B12, Liquid B12... No ratings yet
7 Why Not Natural Organic Vitamin B12 Liquid - Sublingual Extra Strength 60 x 5000 mcg Methylcobalamin... Why Not Natural Organic Vitamin B12 Liquid - Sublingual Extra Strength 60 x 5000 mcg... No ratings yet
8 Vegan Vitamin B12 Sublingual Liquid Drops by Live Conscious- Methylcobalamin Max Strength B12... Vegan Vitamin B12 Sublingual Liquid Drops by Live Conscious- Methylcobalamin Max Strength B12... No ratings yet
9 Pure Encapsulations B12 5,000 Liquid - Vitamin B12 Methylcobalamin Supplement to Support Energy,... Pure Encapsulations B12 5,000 Liquid - Vitamin B12 Methylcobalamin Supplement to Support Energy,... No ratings yet
10 Garden of Life Organics B12 Vitamin - Whole Food B-12 for Metabolism and Energy, Raspberry, 2oz... Garden of Life Organics B12 Vitamin - Whole Food B-12 for Metabolism and Energy, Raspberry, 2oz... No ratings yet
11 Nature's Bounty, Super Strength B-12 Liquid 5000mcg, 2 Oz (Pack of 2) Nature's Bounty, Super Strength B-12 Liquid 5000mcg, 2 Oz (Pack of 2) No ratings yet
12 BASIC GREENS Vitamin B12 Sublingual (Vegan) 2 Fl Oz - Methylcobalamin B12 Vitamins 5000 mcg, B12... BASIC GREENS Vitamin B12 Sublingual (Vegan) 2 Fl Oz - Methylcobalamin B12 Vitamins 5000 mcg, B12...
13 NOW Supplements, Ultra B-12, Liquid, 800 mcg Folic Acid, Cellular Energy Production*, 16-Ounce NOW Supplements, Ultra B-12, Liquid, 800 mcg Folic Acid, Cellular Energy Production*, 16-Ounce No ratings yet
14 Vitamin B12 Spray | USDA Organic Vitamin B12 Liquid Supplement for Nerve Function, Energy Support |... Vitamin B12 Spray | USDA Organic Vitamin B12 Liquid Supplement for Nerve Function, Energy Support... No ratings yet
15 Global Healing Vitamin B12 5000 mcg, Organic Sublingual Liquid Drops | 3-in-1 Methylcobalamin,... Global Healing Vitamin B12 5000 mcg, Organic Sublingual Liquid Drops | 3-in-1 Methylcobalamin,...
16 Nature's Bounty B Complex with B12 Sublingual Liquid Fast Acting Dietary Supplement, Unflavored,... Nature's Bounty B Complex with B12 Sublingual Liquid Fast Acting Dietary Supplement, Unflavored,... No ratings yet
17 Nature's Truth B12 Sublingual Liquid Drops | 10,000 mcg | 2 oz | Fast Acting | Vegetarian, Non-GMO &... Nature's Truth B12 Sublingual Liquid Drops | 10,000 mcg | 2 oz | Fast Acting | Vegetarian, Non-GMO...
18 NOW Supplements, Vitamin B-12 Complex Liquid, Energy Production*, Nervous System Health*, 2-Ounce NOW Supplements, Vitamin B-12 Complex Liquid, Energy Production*, Nervous System Health*, 2-Ounce
19 MaryRuth Organics Vitamin B Complex | B Complex Vitamins | 2 Month Supply | Biotin | Vitamin B12 |... MaryRuth Organics Vitamin B Complex | B Complex Vitamins | 2 Month Supply | Biotin | Vitamin B12...
20 Bluebonnet Nutrition Liquid Vitamin B12 & Folic Acid, for Energy Boost*, Soy-Free, Gluten-Free,... Bluebonnet Nutrition Liquid Vitamin B12 & Folic Acid, for Energy Boost*, Soy-Free, Gluten-Free,...

SaleBestseller No. 1
Nature's Bounty Vitamin B12 5000 Mcg Sublingual Liquid, Cardiovascular Health & Cellular Energy...
  • CELLULAR ENERGY SUPPORT (1) Nature’s Bounty Vitamin B-12 Sublingual Liquid plays an important role in energy metabolism (1); it helps the body...
  • SUPPORTS HEART HEALTH (1) Nature’s Bounty Vitamin B-12 is commonly used to support the health of the cardiovascular and circulatory systems (1);...
  • EASY-TO-TAKE LIQUID Nature’s Bounty Vitamin B-12 Sublingual Liquid makes it easy to get your daily dose of this essential nutrient; Simply place 1...
  • QUALITY IS OUR PRIORITY Nature’s Bounty is committed to the safety of all of our supplements; Our Vitamin B-12 liquid is gluten free; sugar free;...
  • FROM THE TRUSTED WELLNESS EXPERTS Nature’s Bounty Vitamin B-12 Sublingual Liquid is a product of nearly 50 years of dedication to quality;...
SaleBestseller No. 2
Carlyle Vitamin B12 Sublingual | 10,000mcg | 2 fl oz | Vegetarian, Non-GMO, Gluten Free Liquid Drops
  • LIQUID B-12: The perfect routine is drops away with delicious natural berry flavored B12 liquid!
  • SUBLINGUAL FORMULA: Supplies 10,000 mcg per serving of Vitamin B12 in two easy dropperfuls
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • NATURALLY FREE OF: Gluten, Yeast, Lactose, Artificial Flavor, Artificial Color & Non-GMO
Bestseller No. 3
Vimergy USDA Organic B12, 30 Servings – Alcohol Free B-12 Liquid Vitamin - Supports Brain Energy,...
  • 2500MCG OF LIQUID B12 EXTRACT: More potent than some other brands, with 2500mcg of B12 per serving
  • PURITY YOU CAN TRUST: No fillers, citric acid, artificial or natural flavors, alcohol, corn or soy
  • USDA ORGANIC: Certified USDA Organic, Certified Kosher; Non-GMO, Vegan and Paleo Friendly
  • IDEAL FORMULA: With Methylcobalamin & Adenosylcobalmin, active forms of B12 the body uses right away
  • MORE BIO-AVAILABLE: Highly absorbable and may be a good choice for those who have the MTHFR gene
Bestseller No. 4
VITBOOST Vegan Liquid B-12 Drops – 60 x 5000 mcg Extra Strength Raspberry Flavored Vitamin B12...
  • ✔️ BOOST ENERGY LEVEL with VitBoost Vegan Liquid B-12: Vitamin B12 promotes energy production by supporting the adrenal glands, red blood cell...
  • ✔️FLAVORFUL B-12 / NO MORE INJECTIONS: This Raspberry Flavored B-12 Liquid Methyl cobalamin is an easy-to-take and delicious liquid formula that...
  • ✔️MORE POSITIVE ATTRIBUTES with methylcobalamin b12 sublingual liquid drops: Methyl cobalamin or methylated B-12 is the most pure, active,...
  • ✔️SAFE & HIGH QUALITY PRODUCT - Our fast-absorbing vitamin b12 liquid supplement has Non-GMO ingredients – Allergen Free & Gluten Free – Free...
  • ✔️OTHER USES: B12 supplements helps speed up metabolism & are great immunity booster for better HEALTH & HAPPINESS. It boosts Energy Levels,...
Bestseller No. 5
Pure Encapsulations B12 Liquid | 1,000 mcg Vitamin B12 (Methylcobalamin) Supplement to Support...
  • Cognitive Function: B12 is helps support nerve cell health and cognitive function.*
  • Cellular Energy Production: Vitamin B12 can also play an important role in contributing to energy production and maintaining a healthy immune system*
  • Immune Support: Vitamin B12 plays a role in immune system health and healthy homocysteine metabolism.*
  • Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then...
  • Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure...
Bestseller No. 6
(2 Pack) Vitamin B12 Liquid Drops, Vegan B12 Sublingual 5000 mcg, Methylcobalamin B12, Liquid B12...
  • B12 Drops Formulated for Maximum Potency - Our Liquid Vitamin B12 Drops contain Vit B12 5000mcg, B6, B1, Niacin, and Folic Acid, supporting overall...
  • Tons of Benefits - Experience the synergy of brain support, digestive balance, energy metabolism, heart wellness, and immune support in each drop of...
  • Rapid Sublingual Absorption - Our Liquid B12 Drops are designed for efficient sublingual absorption. Just place the drops under your tongue for 30secs...
  • Carefully Curated Organic Vitamin B12 Liquid - Our Vitamin B12 Methylcobalamin B6 B1 Drops contain No Fillers, are Vegan, Non-GMO, Gluten-Free, and...
  • Ultimate 5-in-1 Vitamin B12 Complex - Not all liquid supplements are made equal. Our B-12 Vitamin drops are packed with nutritional benefits. If...
SaleBestseller No. 7
Why Not Natural Organic Vitamin B12 Liquid - Sublingual Extra Strength 60 x 5000 mcg Methylcobalamin...
  • FEEL BETTER, NATURALLY: Our sublingual organic Vitamin B12 formulation is a natural energy, mood, and memory booster - and supports healthy...
  • HIGHEST POTENCY: While most B12 supplements contain 1000mcg to 3000mcg per serving, we give you the same number of servings per bottle at 5000mcg, or...
  • HIGHEST QUALITY GUARANTEE: Compare your current B12's Supplement Facts label to ours, and see why Why Not Natural B12 is #1! We have made it our...
  • EASY FOR YOUR BODY TO USE: Features methylcobalamin, the bioactive form of B12 that’s more readily absorbed by the body. Contains no toxic cyanide...
  • GRADUATED DROPPER FOR EASY DOSING: The graduated/printed dropper allows you to quickly & easily measure 2500mcg, 5000mcg or another amount of B12...
Bestseller No. 8
Vegan Vitamin B12 Sublingual Liquid Drops by Live Conscious- Methylcobalamin Max Strength B12...
  • Naturally-Derived Energy Support: Since Live Conscious Vegan B12 helps convert carbohydrates into glucose, it can lead to greater cellular energy...
  • Energy for a Good Mood: As B12 helps your body feel more energetic, it’s a holistic way to support your mood too.*
  • Methylcobalamin B12 | 5000 Mcg Vegan Formula: By using an under the tongue dropper, Live Conscious Vegan B12 is extremely fast to absorb.*
  • Immune Health: Vitamin B12 promotes the production of white blood cells, which is crucial when it comes to immune system support and protection.*
  • Earth-Friendly Formula: Live Conscious Vegan B12 is lactose-free, gluten-free, soy-free, non-GMO, and made in the U.S. from globally sourced...
Bestseller No. 9
Pure Encapsulations B12 5,000 Liquid - Vitamin B12 Methylcobalamin Supplement to Support Energy,...
  • Liquid B12 Drops: Vitamin B12 (methylcobalamin) helps support nerve cell health and cognitive function*; great-tasting liquid formula
  • Liquid Vitamin B: Vitamin B12 can also play an important role in contributing to energy production and maintaining a healthy immune system*
  • Vit B12 for Immune Support: Vitamin B12 also plays a role in immune system health and homocysteine metabolism*
  • Vitamin B Supplements: This liquid vitamin B12 supports overall well-being and supports red blood cell production
  • Pure Difference: What we leave out matters, too; Pure Encapsulations products are free from common allergens, artificial or unnecessary ingredients,...
Bestseller No. 10
Garden of Life Organics B12 Vitamin - Whole Food B-12 for Metabolism and Energy, Raspberry, 2oz...
  • ENERGY SUPPLEMENT: One spray daily delivers 500 Microgram (8333percentage DV) vegan vitamin b12 as methylcobalamin to support energy, metabolism, and...
  • VITAMIN B 12: Essential to protect the body against anemia and support a healthy central nervous system, b12 vitamin helps maintain healthy nerve...
  • CONCENTRATION SUPPLEMENT: This whole food b 12 concentration spray are made from real, nutritious foods
  • LIQUID VITAMIN: Our organic liquid vitamin b 12 comes in delicious, mouth watering raspberry spray
  • ORGANIC VITAMIN: Our real food b 12 vitamin is Certified USDA Organic, Non GMO Verified, Vegan Certified, Gluten Free Certified, and Kosher Made
Bestseller No. 12
BASIC GREENS Vitamin B12 Sublingual (Vegan) 2 Fl Oz - Methylcobalamin B12 Vitamins 5000 mcg, B12...
  • The Vegan B12 vitamins you need: vitamin B12 provides an extensive list of benefits for our bodies. Enjoy with B-12 vitamin of Basic Greens methyl...
  • Easy-to-take sublingual liquid vegan B12 cherry flavor: make no excuses for not taking vitamin B12 supplements because the Basic Greens B12 Drops are...
  • Most our potent formulation of B12 as methylcobalamin vegan B-12 vitamin: when you're already taking a vitamin B12 supplement, don't settle for...
  • Made in the USA non-GMO vitamin B 12 drops : When choosing any dietary supplement, and not just your B12 vitamins, it is important to take note of...
  • Basic Greens Sublingual Vegan B12 Vitamins Specially Made for You, B12 as Methylcobalamin: We make sure that every bottle of the Vitamin B12...
SaleBestseller No. 13
NOW Supplements, Ultra B-12, Liquid, 800 mcg Folic Acid, Cellular Energy Production*, 16-Ounce
  • CELLULAR ENERGY BOOST*: NOW Vitamin B-12 is appropriate for vegetarians/vegans (non-animal derived), who are at higher risk of developing vitamin B-12...
  • 3 FORMS OF B-12 FOR MAXIMUM UTILIZATION: This complete liquid B-complex delivers 5,000 mcg of B-12 and 800 mcg folic acid per teaspoon. It's also...
  • CERTIFICATIONS/CLASSIFICATIONS: Halal, Kosher, Soy Free, Vegan/Vegetarian, Made without Gluten, Dairy Free, Egg Free, Low Sodium
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our...
  • Packaged in the USA by a family owned and operated company since 1968
Bestseller No. 14
Vitamin B12 Spray | USDA Organic Vitamin B12 Liquid Supplement for Nerve Function, Energy Support |...
  • USDA Organic Liquid B12 Spray: MaryRuth’s has come out with a USDA Organic B12 that is methylated and in a form that has been shown to have superior...
  • Multiple Benefits: Maintain your body’s energy levels and benefit your brain by supporting neurofunction with this tasty berry spray. B12 may help...
  • Vegan Formula: USDA Organic Methyl B12 Liquid Spray by MaryRuth's Ingredients Per Serving (2 Sprays): 1500 mcg Vitamin B12 (as Methylcobalamin). Other...
  • Easy-to-Take Liquid Drops: No more hard-to-swallow pills or capsules! Shake well before use. Adults take 2 sprays or as recommended by a physician or...
  • Free of Common Allergens: MaryRuth's Methyl B12 Spray is USDA Organic | 100% Plant Based | Vegan | Non-GMO | Dairy Free | Nut Free | Gluten & Wheat...
Bestseller No. 15
Global Healing Vitamin B12 5000 mcg, Organic Sublingual Liquid Drops | 3-in-1 Methylcobalamin,...
  • High Potency Formula: Offers 5000 mcg of Vitamin B12 per serving, tailored for optimal absorption and nutritional support.
  • Triple B12 Blend: Combines Methylcobalamin, Adenosylcobalamin, and Hydroxo for a comprehensive B12 supplementation approach.
  • Vegan and Organic: Specially crafted for vegans, using organically sourced ingredients, ensuring high-quality and ethical production.
  • Clean Formulation: Free from common allergens like soy, gluten, dairy, and devoid of fillers or preservatives, catering to various dietary needs.
  • Made in the USA: Produced in Phoenix, Arizona, with a commitment to organic standards and high-quality manufacturing processes in a state-of-the-art...
SaleBestseller No. 16
Nature's Bounty B Complex with B12 Sublingual Liquid Fast Acting Dietary Supplement, Unflavored,...
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when...
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product...
SaleBestseller No. 17
Nature's Truth B12 Sublingual Liquid Drops | 10,000 mcg | 2 oz | Fast Acting | Vegetarian, Non-GMO &...
  • ESSENTIAL VITAMIN: Methylcobalamin, the active form of B12 is a beneficial nutrient in wellness*
  • FAST ACTING FORMULA: Delivers 10,000 mcg of Vitamin B12 in two potent dropperfuls of liquid
  • BERRY BLISS FLAVOR: Our sweet berry flavor is an irresistible way to enjoy your daily B Vitamins!
  • NATURE'S TRUTH SUPPLEMENTS: Backed by three generations of Vitamin Innovators for unrivaled quality
  • NATURALLY FREE OF: Gluten, Yeast, Milk, Lactose, Artificial Flavor & NON-GMO
Bestseller No. 18
NOW Supplements, Vitamin B-12 Complex Liquid, Energy Production*, Nervous System Health*, 2-Ounce
  • NERVOUS SYSTEM HEALTH*/ESSENTIAL FOR ENERGY PRODUCTION*: Vitamin B-12 (cobalamin) is a water soluble vitamin necessary for the maintenance of a...
  • LIQUID B-COMPLEX/SUITABLE FOR VEGANS: While B-12 is stored in the liver, dietary sources are of animal origin only (meat and dairy). Therefore,...
  • CERTIFICATIONS/CLASSIFICATIONS: Vegan/Vegetarian, Kosher, Non-GMO, Soy Free, Made without Gluten, Dairy Free, Egg Free, Sugar Free
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our...
  • Packaged in the USA by a family owned and operated company since 1968
SaleBestseller No. 19
MaryRuth Organics Vitamin B Complex | B Complex Vitamins | 2 Month Supply | Biotin | Vitamin B12 |...
  • Vitamin B Complex Liquid: Since B vitamins are water-soluble, your body doesn’t store them and they must be supplied to your body regularly. Let...
  • Multiple Benefits of Liquid B Complex Vitamins: Vitamin B3 (niacin) plays a role in metabolism and supports the maintenance of normal skin, while...
  • B Complex Vitamins for Women & Men: B9 (Folate) contributes to the normal function of the immune system, and supports the formation of red and white...
  • Vegan Formula: Vitamin B Complex Organic Liquid contains Per Serving (15 Drops): 2 mg Niacin (Vitamin B3) (as Niacinamide); 2 mg Vitamin B6 (as...
  • For Most Lifestyles: MaryRuth's Vitamins B Complex Liquid Drops are USDA Organic, Non-GMO, Vegan, and Made in a GMP (Good Manufacturing Practice)...
Bestseller No. 20
Bluebonnet Nutrition Liquid Vitamin B12 & Folic Acid, for Energy Boost*, Soy-Free, Gluten-Free,...
  • These raspberry flavored liquid drops contain 400 mcg of Folic Acid & 1000 mcg of Vitamin B12
  • Cellular Energy Boost
  • 2 fl oz Liquid Drops, 59 Servings
  • Soy-Free, Gluten-Free, Dairy-Free, Vegan
  • Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans. Also free of yeast, gluten, barley and rice.

What should you look for when purchasing the best liquid b12?

To purchase the right product, you need to research its qualities and flaws.

Diversity is highly important since it offers options for different budgets and lifestyles. Choosing the best liquid b12 requires asking yourself the right questions to ensure the product is precisely what you need.

To make your money’s worth, you should thoroughly research the options you are presented with and ask the following questions:

  • How does buying liquid b12 benefit me?
  • Is it worth the price?
  • Which liquid b12 is the best option to go for in the nowadays market?
  • What features are essential when purchasing the liquid b12?
  • Which brand of the this is most trustworthy?
  • Which liquid b12 has the best price/value ratio?

You are bound to have even more vitally important questions when purchasing the liquid b12. The best way to inform yourself about it is a meticulous exploration of internet resources and research for second opinions and customer reviews.

Various websites can hold pieces of information necessary for purchasing a top-notch product. Forums, reviews, and rating websites can all offer you the instrumental info needed to buy the best possible liquid b12. In order to get accurate information, you should explore trustworthy websites that have a history of providing customers with specific and genuine content.

Curee.org worked hard and conducted comprehensive research to get you the necessary information regarding the liquid b12.

It helps us to put together a high-quality buying guide that will provide you with pros and cons, features, and reasons the product is the right choice for you. To get the liquid b12 that will suit your needs best, you should consider the following factors:

Advantages of the Brand

Every brand of liquid b12 holds different values to it. Typically, each and every brand will have something unique that will attract your attention and make you consider their product as the leading option. The more unique the feature is, the more it will allure you to the product and its value.

Features

Each product has some value that separates it from the pack. Therefore, always ask yourself what features are relevant when purchasing the liquid b12? What is essential for this product to have?

Value of the product

This factor is crucial since it can tell you how much value you will get for your money’s worth when purchasing this.

Customer reviews

The second opinion always matters when you cannot decide on which product you should opt for. These reviews will paint you the picture of the liquid b12 by real-world customers that had experience with the product and inform you on how well it served them.

Customer ratings


Customer ratings are similar to reviews but offer you a number or star rating of the liquid b12, which can tip the scales when you are unsure which product to choose.

Reliability

To get the liquid b12 that will serve your purposes and pay off, you need to choose a reliable and durable one. High-quality product equals wise investment and peace of mind.

Beware off-brands

Purchasing the off-brand liquid b12 is unwise. Always look for reliable brands that offer you the highest possible quality and are trusted and recognized as a legitimate option.

Curee.org always tends to bring its visitors accurate and valuable information that is relevant to the liquid b12. We always refresh and update our content since our priority is and has always been top-notch user experience.

If you have any questions or suggestions about our presentation of the this product, please let us know. You can contact us here, and if our article has made you interested in our work, you can find more about us and better realize our vision and what it represents.

FAQ:

Q: Why should I take a liquid B12?

A: Vitamin B12 can also be taken in liquid form. This method is great for people who may have a few digestive issues, but they don’t have serious health problems to warrant a prescription. If a person…

Q: What are the side effects of liquid B12?

A: Abdominal or stomach pain bleeding from the gums or nose blue lips and fingernails chest pain cough coughing that sometimes produces a pink frothy sputum decreased urine output difficult,fast,noisy breathing,sometimes with wheezing difficulty with swallowing dilated neck veins

Q: Which B12 is better?

A: Taking vitamin B12 by mouth, through the nose, or as a shot is effective for treating vitamin B12 deficiency . Injecting vitamin B12 into the muscle is better than taking it by mouth if vitamin B12 deficiency is severe or nerve damage is present.

Q: What does B12 actually do in the body?

A: 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.