Diabetes supplements

How Much Vitamin B12 Should a Diabetic Take

Introduction Vitamin B12 is a vital nutrient for everyone, but perhaps even more so for those living with diabetes. If you are a diabetic and wondering if .



Vitamin B12 is a vital nutrient for everyone, but perhaps even more so for those living with diabetes. If you are a diabetic and wondering if you should be taking vitamin B12, the answer is yes. However, there is more to consider than just taking a B12 supplement; you also need to factor in your daily dosage of the vitamin and explore various delivery methods. In this article, we will cover all the basics of taking vitamin B12, including the recommended daily dose, how Metformin can affect absorption, delivery methods, and tips to better absorb the vitamin. So, if you’re ready to learn more about how vitamin B12 can benefit diabetics and how much you should be taking, read on!

What is Vitamin B12?

Vitamin B12 is an essential water-soluble vitamin that plays an important role in many of the body’s functions. As part of the B vitamin family, B12 helps maintain nerve cells and red blood cells. It is also necessary for DNA synthesis and metabolic functions. B12 is found naturally in animal-based foods such as eggs, meat, shellfish, and dairy.

B12 is essential in helping to regulate blood sugar levels in diabetics, as well as supporting the production of red blood cells. This is why it is important for diabetics to ensure they get enough vitamin B12 in their diets.

Research has also found that B12 can help reduce the risk of neural tube defects in pregnant women, and it is recommended that pregnant women consume plenty of B12-rich foods. Other benefits of B12 include reducing the risk of anemia, helping to prevent cognitive decline, and reducing the risk of heart disease.

The recommended daily intake of B12 for adults is 2.4 mcg per day. Due to a variety of factors, diabetics may need even more B12 to better regulate their blood sugar levels and keep their bodies running appropriately. Therefore, it is important for diabetics to consult with their doctor to determine how much B12 they should take daily. For those who do not get enough B12 through their diet, B12 supplements can be taken to meet daily needs.

In conclusion, B12 is an important vitamin for diabetics as it helps regulate blood sugar levels and ensures the body is getting enough of this essential vitamin. It is important for diabetics to discuss their B12 needs with their doctors, as well as to ensure they are getting enough of this vitamin through diet or supplementation.

Recommended Daily Dose for Vitamin B-12

Diabetics can take Vitamin B12 as a supplement and should aim to take the recommended daily dose. The recommended daily dose of Vitamin B12 for adults over the age of 14 is 2.4 micrograms. For adults over 50, the daily dose should be increased to 2.8 micrograms.

Diabetics should consider taking a B12 supplement because B12 plays an important role in maintaining proper nerve and blood cell health. B12 also helps the body produce energy, synthesize DNA, and maintain healthy levels of homocysteine, an amino acid linked to heart health. People with diabetes may require higher levels of B12 due to their condition. Diabetes can damage nerves, which can lead to a B12 deficiency.

If a diabetes patient decides to supplement with B12, they should talk to their doctor to determine the best form and dose. B12 is most commonly found in the form of tablets, capsules, and injections, and can also be taken in a liquid or gel form. The supplement should be taken at the same time each day, preferably in the morning or with your largest meal.

In addition to taking a B12 supplement, diabetes patients should also make sure they are getting enough B12 from their diets. Foods that are rich in B12 include beef and beef liver, certain fish like salmon and clams, milk and yoghurt, certain breakfast cereals, and eggs.

In conclusion, people with diabetes can and should take Vitamin B12 as a supplement, as it is important for energy production, nerve and blood cell health, and other important processes in the body. They should ask their doctor to monitor their B12 levels and determine the appropriate dose of supplementation. In addition, they should make sure they are getting enough B12 in their diets by eating foods like beef and beef liver, certain fish, milk and yoghurt, breakfast cereals, and eggs.

Vitamin B-12 Dose to Treat Deficiency

Diabetes is a chronic metabolic disorder that affects millions of people around the world. One of the most common effects of diabetes is a decreased ability to absorb Vitamin B-12. Vitamin B-12 is an essential nutrient that is essential for proper neurological and metabolic functioning. As a result, a vitamin B-12 deficiency can have serious implications for diabetics, including fatigue and depression, as well as other neurological effects.

Fortunately, diabetics can often address their vitamin B-12 deficiency by taking a supplement. However, it is important to understand the right dosage of vitamin B-12 that is necessary to correct the deficiency.

The recommended amount of vitamin B-12 for diabetics is determined by several factors, including the person’s age, sex, medical history, and current health status. Generally, the recommended daily dose of vitamin B-12 for adults ranges from 2.4 to 2.8 mcg per day.
It is important to note that this dose is for the average person who is not deficient in vitamin B-12. If you have been diagnosed with a vitamin B-12 deficiency, you should speak with your doctor or nutritionist about the appropriate dose for you. It is possible that a higher dose may be recommended for individuals who have been diagnosed with a vitamin B-12 deficiency.

In addition to taking supplements to correct a deficiency, it is important to ensure that your diet is providing enough vitamin B-12. Good sources of vitamin B-12 include meat, poultry, fish, eggs, and dairy products. If you are vegetarian or vegan, you may need to take a supplement or multivitamin to ensure that you are getting the necessary amount of vitamin B-12.

In summary, if you have been diagnosed with a vitamin B-12 deficiency, there are several steps you can take to correct the deficiency, including taking a supplement and ensuring your diet is providing adequate amounts of vitamin B-12.

What Are the Signs of Vitamin B12 Deficiency in Diabetics?

The most common signs of vitamin B12 deficiency in diabetics are fatigue, weakness, confusion, depression, impaired memory and difficulty concentrating. These symptoms can be mistaken for other conditions such as depression, hypoglycemia or diabetes itself, making diagnosis and treatment more difficult. Other signs of vitamin B12 deficiency in diabetics include a sore tongue, yellowish skin, pale complexion, breathlessness, irregular heartbeat, anemia, loss of balance and a tingling sensation in the hands and feet.

If you are diabetic and are experiencing any of the above symptoms, it is important that you get your vitamin B12 levels checked by your doctor. If tests reveal that your levels are low, your doctor may recommend supplementing your diet with vitamin B12 or taking a vitamin B12 injection. You should also take steps to increase your dietary intake of vitamin B12 by eating foods such as meat, fish, dairy, eggs, fortified cereals, and other fortified foods.

In summary, vitamin B12 deficiency is a common issue among diabetics, and the most common signs of the deficiency are fatigue, weakness, confusion, depression, impaired memory and difficulty concentrating. If you are experiencing any of these symptoms, it is important to get tested for vitamin B12 deficiency and consider increasing your dietary intake of this important nutrient. Finally, it is safe for diabetics to take supplements or injections of vitamin B12 with the approval of their doctor.

How does Metformin Dose Effect Absorption of Vitamin B-12

For diabetic patients, the amount of vitamin B-12 they need can depend on the type and dose of medication they are taking. Patients taking metformin, a common treatment for type 2 diabetes, may need to supplement with higher doses of vitamin B-12 due to the potential reduction in its absorption.

Vitamin B-12 and Metformin

Metformin is a biguanide medication that helps to reduce blood glucose concentrations in diabetics. Biguanides, including metformin, are known to have a potential to reduce the absorption of vitamin B-12. This can be problematic for patients with diabetes because vitamin B-12 is an essential nutrient needed for energy production and is required for the normal functioning of the nervous system.

The extent to which metformin affects absorption of vitamin B-12 varies depending on the dosage. The severity of the reduction in vitamin B-12 levels decreases with lower doses of metformin. Therefore, if a patient is on a lower dose of metformin, they may not need to take additional vitamin B-12 supplementation.

In addition to the amount of metformin a patient is taking, there are other factors that can affect vitamin B-12 absorption, such as age and genetics. To ensure that you are getting adequate levels of vitamin B-12, it is important to talk to your healthcare provider about your individual needs. If you are taking metformin, your healthcare provider may recommend additional vitamin B-12 supplementation, especially if you are on a high dose of metformin or if you have other risk factors for vitamin B-12 deficiency.

What’s the Best B12 Delivery Method: Sublingual or Injection?

The delicate balance of managing diabetes requires managing your intake of vitamins, including vitamin B12. But when it comes to B12, the big question is: how? Can diabetics take b12 in the form of a sublingual tablet or injection?

Sublingual tablets are a popular choice for delivering B12 to diabetics. These tablets dissolve easily under the tongue and allow the B12 to be absorbed directly into your systemic circulation without requiring digestion. This method avoids the stomach, where B12 deficiency is more easily present, and may also be more effective in absorption due to the rapid delivery. Sublingual tablets also come in different strengths and doses, allowing you to tailor your intake to your needs.

The downside of sublingual tablets is that their effects are not as strong or long-lasting as injections. Additionally, sublingual tablets are not recommended for diabetics who have difficulty swallowing or have poor oral hygiene.

B12 injections on the other hand, are a more direct way to deliver B12 to the body. Because B12 injections are injected directly into a muscle, they are immediately available to the body. Injections also allow for larger doses of B12, which can be more effective in combating deficiencies. But, unlike sublingual tablets, B12 injections can be uncomfortable and require a trained professional to administer them. Additionally, injections can be expensive and may not be covered by insurance.

So, what’s the best option for a diabetic to get their B12? The answer depends on your individual needs and preferences. If you prefer a quick and precise delivery method, then injections may be the best option. For those who are more comfortable with a slower delivery method, sublingual tablets may be the better choice. Ultimately, speak with your doctor to determine the best option for your situation.

Vitamin B12 Shots Vs. Pills

For those with diabetes, the question that arises is whether to take B12 shots or pills.

Vitamin B12 Shots

When discussing taking Vitamin B12 for those with diabetes, it’s important to first address if it is alright for diabetics to take Vitamin B12 shots. The short answer is yes, diabetics can take B12 shots, as long as they are administered correctly.

How Often Can You Inject B12?

If you need vitamin B12 injections on a regular basis, you would get cyanocobalamin once a month and hydroxocobalamin every three months. For those with diabetes, B12 shots can provide a more reliable and effective way of absorbing the vitamin compared to oral supplements, since the shots bypass the gastrointestinal system. This efficient absorption can be especially beneficial for those with diabetes who have trouble absorbing nutrients due to GI issues.

Vitamin B12 Pills

On the other hand, Vitamin B12 pills are another option for those with diabetes. B12 pills are an easy and convenient way to get your daily dose of the vitamin, since they do not require a doctor’s visit or a prescription. B12 pills are also a cost-effective option, as they are relatively inexpensive compared to B12 shots. Plus, diabetics can benefit from small dosages split up throughout the day, as this helps with absorption.

Ultimately, when deciding between B12 shots and pills, it’s important to consider the individual’s needs and lifestyle. This can help them make an informed decision on which option is the best for their unique situation. Furthermore, if you have diabetes, it’s important to consult with your healthcare provider before starting or changing your Vitamin B12 regimen.

How Often Can You Inject B12?

Injections of vitamin B12, an essential vitamin for healthy red blood cells and nerve function, can provide great benefits to diabetics. However, it is important to understand the different forms in which B12 can be administered and how often injections should be taken. To ensure maximum benefit, diabetics should be equipped with the right information in order to determine the best approach for their personal health.

One of the most common forms of B12 injection is intramuscular, which is administered directly into the muscle. Intramuscular injections are typically recommended once or twice monthly, as the body is only able to absorb a limited amount of B12 at a time. If you need vitamin B12 injections on a regular basis, you would get cyanocobalamin once a month and hydroxocobalamin every three months. Additionally, injections given too close together can cause the body to become overwhelmed, leading to potential side effects. While intramuscular injections offer the highest absorption of B12, diabetics should be aware of the potential for developing lumpy deposits beneath the skin, which may be painful and difficult to treat.

Subcutaneous injections are another form of vitamin B12 injection, taken into the fatty tissue underneath the skin. For these injections, body is better able to absorb smaller doses of B12 over time. Subcutaneous injections may be preferable for those who are unable to tolerate intramuscular injections. For diabetics, subcutaneous injections can be used in combination with oral supplements or injections to ensure adequate levels of B12 in the body.

Lastly, B12 can be taken orally, through a variety of food sources including eggs, fish and fortified cereals. While oral supplementation is an easy and effective way to ensure adequate B12 levels in the body, diabetics should understand that absorption rates vary considerably and are dependent on the individual. As a result, oral supplementation may not be sufficient and injections may be necessary.

How to Be Smart About Vitamin B12 With Diabetes

When it comes to taking vitamin B12, diabetics need to be smart and know how much they should take. Vitamin B12 is important for proper neurological and cognitive functioning, and is also essential for maintaining energy levels and a healthy metabolism. For people with diabetes, it is important to be aware of the different forms of vitamin B12 and how to make sure you are getting the right amount.

First, it is important to understand that not all vitamin B12 is the same. There are two types: Cyanocobalamin and Methylcobalamin. Cyanocobalamin is the most commonly available and is the form found in most supplements. However, methylcobalamin is the form most easily absorbed and used by the body. Methylcobalamin is usually more expensive, but is definitely worth the investment if you need it.

When it comes to getting enough vitamin B12, it is important to make sure that you are eating enough of the right foods. The richest sources of vitamin B12 are animal products, such as meat, dairy, and eggs. If you are vegan or vegetarian, you can get vitamin B12 from fortified foods such as breakfast cereal, plant-based milk, and plant-based yogurt. If you are unable to get enough vitamin B12 from your diet, you may need to take a supplement.

Taking the right amount of vitamin B12 is important for people with diabetes, as it can help to regulate blood sugar levels and help to prevent complications such as nerve damage and blindness. It is important to be informed and be sure to talk to your doctor before taking any supplements, as they will be able to give you the best advice on how to get enough of this important nutrient.

3 Tips to Increase B12 Absorption

To make sure you’re getting the most out of the B12 you take, it’s important to consider these three tips for improving absorption.

Take Smaller Doses

First and foremost, take smaller doses of B12 throughout the day. Diabetics often have trouble absorbing larger doses of B12 all at once, so it’s generally best to take smaller doses more often. This ensures that your body won’t become overwhelmed and allows it to absorb more of the B12.

Combine with other vitamins

It’s important to make sure you’re combining B12 with other nutrients. Vitamin B12 requires other nutrients in order to be absorbed properly. Therefore, it’s best to take B12 with meals that are rich in other B vitamins, like folate or B6, or with foods containing high amounts of calcium or magnesium.

Add a Digestive Enzyme

Consider adding a digestive enzyme supplement to your routine. Diabetics often have impaired digestion, so taking a supplement with digestive enzymes can help break down and absorb the B12 more efficiently. There are a variety of digestive enzyme supplements on the market, but it’s always best to talk to a doctor before starting any new supplement.

By taking these three steps, you can ensure that your body is absorbing and utilizing the B12 that you’re taking. Remember to always talk to a doctor before changing your supplement routine – but with the right approach, you can make sure that you’re getting the most out of your B12.

Food Sources of Vitamin B12

The best sources of Vitamin B12 are animal-based foods, such as meats, fish, eggs, dairy products, and fortified foods. Lean meats, such as chicken and turkey, are especially good sources of Vitamin B12. Fish, such as salmon, tuna, and trout, are also high in Vitamin B12, as well as being rich in omega-3 fatty acids, which are beneficial for diabetics. Dairy products, such as milk, yogurt, and cheese, are good sources of Vitamin B12, as well as being low in fat. Fortified cereals and soy products are also good sources of Vitamin B12.

Most people, including diabetics, can get the Vitamin B12 that they need by eating a balanced diet that includes a variety of animal and plant-based foods. However, it is important for diabetics to talk to their healthcare team before supplementing with Vitamin B12, as too much of the nutrient can interfere with diabetes medications and increase the risk of side effects.

In conclusion, Vitamin B12 is an essential nutrient for diabetics, and can be found in a variety of animal and plant-based foods. Eating a balanced diet that includes meats, fish, eggs, dairy products, and fortified foods, can help diabetics get the Vitamin B12 that they need. However, it is important to speak to a healthcare professional before supplementing with Vitamin B12, as it can interfere with diabetes medications and increase the risk of side effects.

Are There Any Potential Risks to Taking Too Much Vitamin B12?

First, it is important to understand that there is no one-size-fits-all answer to the question of how much vitamin B12 a diabetic should take. The ideal dosage of B12 depends on many factors, such as age, weight, gastrointestinal health, and health conditions, including diabetes. It is important that any person with diabetes speak with a doctor or healthcare provider before taking any supplement.

When it comes to potential risks of taking too much vitamin B12, it is important to note that it is difficult to do so from food sources, though it is possible to take too much from supplements. Taking a large amount of B12 can interfere with how the body absorbs folate and iron, both of which are important for those with diabetes, as an imbalance of either can complicate diabetes management. Additionally, too much B12 can cause body systems to become overloaded with an excess of B12, leading to adverse effects such as fatigue and headaches.

The bottom line is that for diabetics, it is important to consult with a doctor or healthcare provider before taking any vitamin B12 supplement. Taking the right amount and quality of B12 is key to having a healthy, balanced diet and preventing any complications with diabetes management.


In conclusion, it is very important for diabetics to keep an eye on their Vitamin B12 levels and make sure they are getting enough of this essential vitamin. Diabetics should take the recommended daily dose of Vitamin B12 and can supplement with food sources, sublingual tablets, or injections. Diabetics should also be aware of the potential risks associated with taking too much B12. With careful monitoring and taking the right amount, diabetics can benefit from this crucial vitamin and lead healthy lives.


About The Author

Who is Dr. Ergin?  Dr. Ahmet Ergin is an endocrinologist interested in and passionate about diabetes care. Dr. Ergin earned his medical degree with honors at Marmara University School of Medicine in Istanbul, Turkey, and completed his internal medicine residency and endocrinology fellowship at Cleveland Clinic in Cleveland, Ohio.

He is a board-certified Internal Medicine, Endocrinology, Diabetes, and Metabolism Physician; a certified diabetes education specialist, the author of The Ultimate Diabetes Book; and the Founder of the SugarMD youtube channel.  He practices in Port Saint Lucie, FL as an endocrinologist physician.

Disclaimer: Any information on diseases and treatments on this website is for general guidance only and must never be a substitute for the advice your doctor or other qualified healthcare professional provides.  Always seek the advice of your physician, health provider, or other qualified healthcare professional’s advice with questions regarding your health.