Overview

SCIENTIFIC SCORE
Questionable
Based on 10 Researches
6.7
USERS' SCORE
Good
Based on 21 Reviews
8.8
Supplement Facts
Serving Size: 1 Lozenge
Amount Per Serving
%DV
Vitamin B-12 (as Methylcobalamin)
1 mg (1,000 mcg)
41,667%

Top Medical Research Studies

8
Vitamin B status correlates with mortality
We examined the role of vitamin B status on mortality rates, focusing on cardiovascular disease. Using data from over 12,000 adults, we found that higher scores on the combined vitamin B status indicator (3cB) were linked to lower risks of dying from cardiovascular issues. Specifically, individuals with lower 3cB scores faced significantly higher risks of mortality. This suggests that maintaining adequate vitamin B levels could potentially play an important part in reducing cardiovascular disease-related deaths.
Read More
8
Vitamin B12 reduces cardiovascular risks
We explored the connection between vitamin B12, genetic factors, and cardiovascular health in a group of Chinese adults suffering from hypertension. By analyzing the genetic variations of individuals, we aimed to understand how these may influence levels of homocysteine, an amino acid that can impact heart health when present in high amounts.

Our study included 1,304 participants over the age of 18. We measured their serum levels of vitamin B12 and folate, as well as their total homocysteine concentrations. The findings were quite significant: adequate levels of both vitamin B12 and folate were linked to lower homocysteine levels. This suggests that ensuring proper nutrition might be key to managing cardiovascular risks associated with high homocysteine.

We also noticed that the genotypic effects on homocysteine levels could be lessened with sufficient intake of these vitamins. Targeted nutritional interventions, such as increasing vitamin B12 and folate in the diet, could therefore play an essential role in heart health for those at risk. Our results emphasize the importance of nutrition in supporting cardiovascular health and managing hypertension.
Read More
7
Vitamin B12 and blood pressure impact
We examined the link between folic acid and vitamin B12 levels and high blood pressure in children and adolescents. Using a nested case-control and cohort study design, we found that those with elevated blood pressure had lower levels of these vitamins compared to control groups. Notably, low folic acid levels were associated with higher blood pressure readings and an imbalance in lipid levels. Our findings highlight the importance of ensuring adequate intake of folic acid and vitamin B12 in childhood, either through diet or supplements, to help regulate blood pressure.
Read More

Most Useful Reviews

9.5
Enhances cardiovascular health
I trust the Now brand. I began supplementing my 83-year-old mother with methylcobalamin after consulting several doctors. It’s recommended for better absorption and aims to support her cardiovascular health, given her limited meat consumption.
Read More
9.5
Promotes health
I chose products from Now Foods for my 83-year-old mother based on their quality. I started her on methylcobalamin to improve cardiovascular and neurological health, especially since she consumes little meat.
Read More
9.5
Alleviates numbness
Excellent product! Although I didn't have a severe B12 deficiency, my symptoms like numbness have improved significantly, and I can now manage dental work without anaesthesia.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 10 Researches
6.7
  • All Researches
8
Vitamin B status correlates with mortality
We examined the role of vitamin B status on mortality rates, focusing on cardiovascular disease. Using data from over 12,000 adults, we found that higher scores on the combined vitamin B status indicator (3cB) were linked to lower risks of dying from cardiovascular issues. Specifically, individuals with lower 3cB scores faced significantly higher risks of mortality. This suggests that maintaining adequate vitamin B levels could potentially play an important part in reducing cardiovascular disease-related deaths.
Read More
We investigated how exposure to metal mixtures during pregnancy influences blood pressure and hypertension later in life.

Using data from Project Viva, we followed 493 women over an average of 18 years.

Our findings revealed that higher levels of vitamin B12, along with essential metals like copper and manganese, were linked to lower blood pressure and reduced hypertension risk.

However, some metals showed mixed results, indicating a complex relationship.

Overall, optimizing nutrient levels during pregnancy may offer lasting benefits for women's cardiovascular health.
Read More
8
Vitamin B12 reduces cardiovascular risks
We explored the connection between vitamin B12, genetic factors, and cardiovascular health in a group of Chinese adults suffering from hypertension. By analyzing the genetic variations of individuals, we aimed to understand how these may influence levels of homocysteine, an amino acid that can impact heart health when present in high amounts.

Our study included 1,304 participants over the age of 18. We measured their serum levels of vitamin B12 and folate, as well as their total homocysteine concentrations. The findings were quite significant: adequate levels of both vitamin B12 and folate were linked to lower homocysteine levels. This suggests that ensuring proper nutrition might be key to managing cardiovascular risks associated with high homocysteine.

We also noticed that the genotypic effects on homocysteine levels could be lessened with sufficient intake of these vitamins. Targeted nutritional interventions, such as increasing vitamin B12 and folate in the diet, could therefore play an essential role in heart health for those at risk. Our results emphasize the importance of nutrition in supporting cardiovascular health and managing hypertension.
Read More
7
Vitamin B12 aids coronary health
We examined a unique case involving a 57-year-old man who experienced a myocardial infarction due to coronary artery spasm. His condition was associated with high serum homocysteine levels and low vitamin B12. Following treatment with vitamin B12 and calcium channel antagonists, his homocysteine levels normalized, and he reported no further chest pain or spasm.

This case suggests that managing homocysteine levels might be an effective strategy in preventing coronary artery spasm, highlighting vitamin B12's potential role in cardiovascular health.
Read More
7
Vitamin B's role in hypertension management
We investigated how blood levels of B vitamins, particularly B6 and B12, influence blood pressure variability (BPV) in individuals with essential hypertension.

Our study included 100 patients with hypertension and 100 healthy controls. We discovered that both B vitamin levels were notably lower in the hypertensive group, while their BPV indices were significantly higher.

Interestingly, those with higher levels of B vitamins showed reduced BPV, suggesting that boosting these vitamins might help manage hypertension. However, while the trend is promising, it doesn't establish a definitive cause-and-effect relationship.
Read More

User Reviews

USERS' SCORE
Good
Based on 21 Reviews
8.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Enhances cardiovascular health
I trust the Now brand. I began supplementing my 83-year-old mother with methylcobalamin after consulting several doctors. It’s recommended for better absorption and aims to support her cardiovascular health, given her limited meat consumption.
Read More
9.5
Promotes health
I chose products from Now Foods for my 83-year-old mother based on their quality. I started her on methylcobalamin to improve cardiovascular and neurological health, especially since she consumes little meat.
Read More
9.5
Alleviates numbness
Excellent product! Although I didn't have a severe B12 deficiency, my symptoms like numbness have improved significantly, and I can now manage dental work without anaesthesia.
Read More
9.5
Improves brain health
B-12 is a vital part of my diet. I take it to boost my haemoglobin and relieve muscle pain from myositis. There’s evidence that sufficient B-12 can help prevent diseases like senile dementia and sclerosis in old age. I particularly recommend it for those over 50, dissolving one tablet daily under the tongue to avoid stomach upset.
Read More
9.5
Lowers homocysteine
I trust Now Foods, so I chose their B-12. The pink cherry-flavoured tablets are delicious and help lower homocysteine, which reduces the risk of heart attacks and strokes. Additionally, B-12 is vital for producing choline, protecting against unbalanced diets and fatty liver disease.
Read More

Frequently Asked Questions

Cardiovascular disease (CVD) is a broad term that encompasses a range of heart and blood vessel disorders. This can include conditions such as coronary artery disease, which leads to heart attacks; cerebrovascular disease that results in strokes; and peripheral artery disease affecting blood flow to the limbs. The key risk factors for CVD often include high blood pressure, high cholesterol, obesity, smoking, a sedentary lifestyle, and diabetes. By identifying and managing these risk factors, individuals can significantly reduce their likelihood of developing cardiovascular problems.

Prevention and treatment strategies often involve lifestyle modifications such as adopting a heart-healthy diet rich in fruits, vegetables, whole grains, and lean proteins, alongside engaging in regular physical activity. In some cases, medications might be necessary to control blood pressure or cholesterol levels. Regular check-ups with a healthcare provider are essential for monitoring heart health, especially for individuals with a family history of CVD. Understanding the signs and symptoms of cardiovascular issues—like chest pain, shortness of breath, or fatigue—can help in seeking timely medical attention, ultimately leading to better outcomes.

Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a crucial role in several vital functions in the human body. It is essential for red blood cell formation, neurological function, and DNA synthesis. Naturally occurring in animal products, the vitamin can be found in high concentrations in meat, fish, eggs, and dairy, making it particularly important for those following a vegetarian or vegan diet, as plant-based sources of B12 are limited and often require supplementation.

A deficiency in vitamin B12 can lead to serious health issues, including anemia, fatigue, memory problems, and nerve damage. Due to its significance, it's crucial for individuals, particularly those at risk of deficiency, to ensure adequate intake through diet or supplementation. For most adults, the recommended daily allowance (RDA) is around 2.4 micrograms, though pregnant or breastfeeding women may require higher amounts. If you're considering B12 supplements, it's advisable to consult with a healthcare provider to determine the best option for your specific needs and health status.

Vitamin B12 plays a crucial role in maintaining overall health, particularly in energy production and red blood cell formation. However, its direct impact on cardiovascular disease (CVD) is complex and still under research. Some studies suggest that low levels of B12 may be linked to elevated homocysteine levels—a risk factor for heart disease. By helping to break down homocysteine, adequate B12 intake may theoretically contribute to better cardiovascular health. However, it's important to note that while B12 supplementation might help reduce homocysteine levels, it does not necessarily translate to a lower risk of CVD or its complications.

Current guidelines emphasize a balanced diet rich in various nutrients—including vitamins B6, B12, and folate—which collectively may support cardiovascular health. Foods like meat, fish, dairy, and fortified cereals are excellent sources of B12. For those considering B12 supplements as a means to protect their heart health, it's advisable to consult with a healthcare professional for personalized advice. Relying solely on B12 without addressing other lifestyle factors, such as diet, exercise, and cholesterol levels, is unlikely to result in significant cardiovascular benefits. In summary, while B12 is essential for health, more research is needed to conclusively link it to cardiovascular disease prevention.

Based on user reviews, the timeframe to see results from taking a B12 supplement like methylcobalamin for cardiovascular health varies, but many users report experiencing improvements within a couple of weeks. For instance, one user noted that they observed "quick improvements in my hand numbness" after just two weeks on B12, which suggests noticeable benefits can surface relatively quickly ((Read Review)). Similarly, another user suggests that taking the supplement for two weeks is advisable to start noticing the benefits ((Read Review)).

However, it's important to note that while some users felt a difference in a short period, others mentioned not experiencing significant changes after a few months of use. One user commented on not noticing substantial improvements, suggesting results can be variable and may depend on individual health conditions and needs ((Read Review)). Overall, while a majority seem to appreciate quick gains from methylcobalamin, it could take longer for others to realize the full benefits for cardiovascular health.

When it comes to the potential benefits of vitamin B supplements for cardiovascular disease, scientific research suggests a promising link, though the evidence varies. Studies indicate that maintaining adequate levels of vitamin B, particularly B6, B12, and folate, can contribute positively to cardiovascular health. For example, a study involving over 12,000 adults found that higher combined vitamin B status was associated with lower risks of mortality from cardiovascular issues, implying that these vitamins could play an essential role in reducing such deaths [1]. Similarly, another investigation noted that individuals with hypertension showed reduced blood pressure variability when they had higher levels of these vitamins, suggesting that vitamin B might help manage hypertension [3].

However, while some evidence supports vitamin B supplementation in cardiovascular contexts, there are also nuances. For instance, one study highlighted potential risks associated with excessive levels of vitamin B12, particularly in men, which could increase stroke risk [8]. Moreover, despite the positive findings regarding vitamin B's role in lowering homocysteine levels—an important factor in cardiovascular health—more research is needed to establish clear cause-and-effect relationships [9]. Overall, while there's support for the cardiovascular benefits of vitamin B supplementation, individuals should approach their intake with caution and ideally seek professional dietary advice.

Based on user reviews, many individuals have reported significant improvements in various symptoms after taking methylcobalamin. Some users specifically mentioned the alleviation of hand numbness, with one user noting "quick improvements in my hand numbness" after just two weeks of supplementation ((Read Review)). Other anecdotal experiences reflect enhancements in energy levels and cognitive function, with users claiming better management of dental procedures without the need for anesthesia ((Read Review)) and improved sleep quality ((Read Review)).

Furthermore, some users associate their methylcobalamin use with crucial benefits for cardiovascular health, such as lowering homocysteine levels, which are linked to a reduced risk of heart disease and strokes ((Read Review)). It's important to note, however, that individual results can vary greatly; while many report clear benefits within weeks to months, some users have not observed significant changes despite a longer duration of use ((Read Review)). Overall, methylcobalamin seems to be a promising option for those seeking to improve their neurological and cardiovascular health, particularly in older adults or individuals with dietary limitations.

Based on user reviews, many individuals report positive experiences when combining methylcobalamin with other supplements to address cardiovascular disease. Several users highlighted the importance of Vitamin B12, deeming it essential for lowering homocysteine levels, which in turn reduces the risk of heart-related issues such as strokes and heart attacks ((Read Review)). One user even mentioned that the combination of B12 with other B vitamins enhances its beneficial effects ((Read Review)). This synergistic approach appears to be well-regarded among users who prioritize optimizing their cardiovascular health.

Users also often recommend methylcobalamin for older adults or those with restricted diets, as it aids in preventing deficiencies that could lead to cardiovascular complications. Reviews suggest that those who are mindful of their nutritional intake, such as vegans or individuals with limited meat consumption, can greatly benefit from supplementing with methylcobalamin alongside other essential vitamins ((Read Review)). Overall, combining methylcobalamin with a balanced array of supplements is seen as a proactive strategy in managing cardiovascular health.

Users report that Vitamin B12, particularly in its methylcobalamin form, is beneficial for cardiovascular health and may help reduce the risk of chronic conditions. Many reviews highlight that a 1000mcg dose is commonly considered effective and safe, as it improves absorption compared to other forms like cyanocobalamin. For instance, one user specifically noted that methylcobalamin aids in lowering homocysteine levels, which is linked to cardiovascular diseases, and emphasizes its importance for overall heart health ((Read Review)). Regular supplementation is encouraged, with suggestions for individuals over 50 or those on dietary restrictions, as B12 is often lacking in low-meat or vegan diets ((Read Review)).

8.8
Treats blood pressure
After two weeks on B12, I've seen quick improvements in my hand numbness. Since I deal with high blood pressure, I find this product very promising for my health issues. I'll keep using it and recommend it to others.
9.5
Prevents pernicious anemia
Vitamin B12 is so important because it helps alleviate pain and prevent conditions like pernicious anaemia and cardiovascular disease. Taking it for two weeks is recommended, and the combination with other B vitamins enhances its healing effects.
9.5
Alleviates numbness
Excellent product! Although I didn't have a severe B12 deficiency, my symptoms like numbness have improved significantly, and I can now manage dental work without anaesthesia.
7
Health improvement
I have found that it improves hand numbness, aids in red blood cell formation, enhances nervous system health, and increases stress resistance. It also assists with sleep, boosts metabolism, and lowers the risk of cardiovascular disease.
8
Supports cardiovascular health
Vitamin B12 is crucial for maintaining cardiovascular health. I take it for its benefits to my blood vessels, which I believe aids memory and cognitive function, and helps prevent dementia. Although I haven't noticed a significant change after a few months, I definitely feel more fatigued on days when I don't take it.
9.5
Lowers homocysteine
I trust Now Foods, so I chose their B-12. The pink cherry-flavoured tablets are delicious and help lower homocysteine, which reduces the risk of heart attacks and strokes. Additionally, B-12 is vital for producing choline, protecting against unbalanced diets and fatty liver disease.
8.8
Essential for nerve health
Methylcobalamin from Now Foods is crucial for maintaining a healthy nervous system and metabolising fats and proteins. It supports cognitive function and is vital for DNA synthesis. As vegans are often at risk of deficiency, supplementation is necessary for cardiovascular health.
9.5
Helps prevent dementia
This is truly essential! Vitamin B12 is vital for brain function, energy production, cleansing the body, and maintaining mood. It's presented here as methylcobalamin, the most absorbable form, and plays a significant role in protecting nerve fibres and cell health. It helps prevent cardiovascular disease and dementia by reducing toxic homocysteine levels.
8
Vitamin B status correlates with mortality
We examined the role of vitamin B status on mortality rates, focusing on cardiovascular disease. Using data from over 12,000 adults, we found that higher scores on the combined vitamin B status indicator (3cB) were linked to lower risks of dying from cardiovascular issues. Specifically, individuals with lower 3cB scores faced significantly higher risks of mortality. This suggests that maintaining adequate vitamin B levels could potentially play an important part in reducing cardiovascular disease-related deaths.
7
Vitamin B's role in hypertension management
We investigated how blood levels of B vitamins, particularly B6 and B12, influence blood pressure variability (BPV) in individuals with essential hypertension.

Our study included 100 patients with hypertension and 100 healthy controls. We discovered that both B vitamin levels were notably lower in the hypertensive group, while their BPV indices were significantly higher.

Interestingly, those with higher levels of B vitamins showed reduced BPV, suggesting that boosting these vitamins might help manage hypertension. However, while the trend is promising, it doesn't establish a definitive cause-and-effect relationship.
We investigated whether high levels of vitamin B-12 could influence stroke risk, especially considering gender differences. By analyzing data from the Korean Genome Epidemiology Study, we learned that while excessive vitamin B-12 on its own does not significantly raise stroke risk, it appears to increase stroke risk in men.

Our findings suggest that the interaction between high B-12 levels and sex plays an important role, highlighting a unique connection for males that isn't observed in females. It’s a nuanced look into vitamin B-12’s impact on cardiovascular health.
8
Vitamin B12 reduces cardiovascular risks
We explored the connection between vitamin B12, genetic factors, and cardiovascular health in a group of Chinese adults suffering from hypertension. By analyzing the genetic variations of individuals, we aimed to understand how these may influence levels of homocysteine, an amino acid that can impact heart health when present in high amounts.

Our study included 1,304 participants over the age of 18. We measured their serum levels of vitamin B12 and folate, as well as their total homocysteine concentrations. The findings were quite significant: adequate levels of both vitamin B12 and folate were linked to lower homocysteine levels. This suggests that ensuring proper nutrition might be key to managing cardiovascular risks associated with high homocysteine.

We also noticed that the genotypic effects on homocysteine levels could be lessened with sufficient intake of these vitamins. Targeted nutritional interventions, such as increasing vitamin B12 and folate in the diet, could therefore play an essential role in heart health for those at risk. Our results emphasize the importance of nutrition in supporting cardiovascular health and managing hypertension.

References

  1. Li Y, Wang H, Chen S, Wei Q, Liu Y, et al. The combined indicator of vitamin B status calculated using 3-parameters (3cB) is negatively associated with mortality among US adults: NHANES 1999 to 2004. Nutr Res. 2025;136:53. doi:10.1016/j.nutres.2025.02.008
  2. Ikeda A, Akama J, Ohki Y, Kunii H, Saitoh SI. Myocardial infarction with non-obstructive coronary artery caused by coronary artery spasm and an increase in serum homocysteine: a case report. Eur Heart J Case Rep. 2025;9:ytaf118. doi:10.1093/ehjcr/ytaf118
  3. Bian XY, Cui C, Zhang QY. Relationship between blood pressure variability and vitamin B level in essential hypertension. J Physiol Pharmacol. 2025;76. doi:10.26402/jpp.2025.1.02
  4. Zhang M, Aris IM, Cardenas A, Rifas-Shiman SL, Lin PD, et al. Pregnancy Metal Mixtures and Blood Pressure and Hypertension in Mid-Life: A Prospective U.S. Cohort Study. Hypertension. 2025. doi:10.1161/HYPERTENSIONAHA.124.23980
  5. Chen X, Bishai D. Revisiting cost-effectiveness of folic acid supplementation in primary stroke prevention in China: considering vitamin B12 deficiency masking issue. BMC Public Health. 2024;24:3540. doi:10.1186/s12889-024-21005-7
  6. Chen B, Wang C, Li W. Genetic insights into the effect of trace elements on cardiovascular diseases: multi-omics Mendelian randomization combined with linkage disequilibrium score regression analysis. Front Immunol. 2024;15:1459465. doi:10.3389/fimmu.2024.1459465
  7. Liang X, Huang D, Bi Y, He Y, Mao T, et al. The impact of folic acid/VB12 deficiency on essential hypertension in children and adolescents: from a nested case-control and a cohort study. J Hum Hypertens. 2024;38:844. doi:10.1038/s41371-024-00955-w
  8. Jung E, Kook HY, Ryu SJ, Ryu HH, Kim HG. The Association of Vitamin B-12 Plasma Concentration with Stroke Incidence According to Sex. J Nutr. 2024;154:3012. doi:10.1016/j.tjnut.2024.08.002
  9. Siddiqi SM, Liu L, Du Y, Song Y, Chen P, et al. Association of MTHFR C677T, MTHFRA1298C, and MTRRA66G Gene Polymorphisms with Hyperhomocysteinemia and Its Modulation by the Combined Effect of Vitamin B12 and Folate in Chinese Population with Hypertension. J Nutr. 2024. doi:10.1016/j.tjnut.2024.09.003
  10. Liang X, Huang D, Bi Y, He Y, Mao T, et al. The impact of folic acid/VB12 deficiency on essential hypertension in children and adolescents: from a nested case-control and a cohort study. J Hum Hypertens. 2024;38:844. doi:10.1038/s41371-024-00955-w
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