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Doctor's Best Fully Active B12
SCIENTIFIC SCORE
Questionable
Based on 10 Researches
6.7
USERS' SCORE
Good
Based on 4 Reviews
8.6
Supplement Facts
Serving Size: 1 Veggie Capsule
Amount Per Serving
%DV
Vitamin B12 (as Methylcobalamin)
1,500 mcg
62500%

Top Medical Research Studies

8
Vitamin B status correlates with mortality
The combined indicator of vitamin B status calculated using 3-parameters (3cB) is negatively associated with mortality among US adults: NHANES 1999 to 2004.
High relevance to cardiovascular health
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
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.
Moderate relevance to findings
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
The impact of folic acid/VB12 deficiency on essential hypertension in children and adolescents: from a nested case-control and a cohort study.
Relevant findings on hypertension
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
Improved red blood cells
This form of B12 genuinely works, as our lab results confirmed. While dealing with pernicious anaemia linked to blood cancer, I found traditional B12 ineffective. Once we began using this activated version, we observed a halt in the decline of hemoglobin levels, eventually seeing improvement. Regular use kept my red blood cell count above 8.5. It's vital for the formation of red blood cells, and many doctors underestimate its importance, despite the need for sufficient iron.
Read More
8.8
Beneficial for recovery
I have found this product beneficial as it positively impacts cardiovascular disease, cognitive ability, and recovery from fatigue.
Read More
7.5
Gradual pain relief
After getting shingles, I struggled with pain despite medical treatment. Knowing B12 could help, I opted for this well-reviewed product. Initially sceptical, I took one tablet nightly. Although the effect wasn't immediate, over two weeks, my pain gradually lessened and eventually vanished. I now take it twice a week.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 10 Researches
6.7
  • All Researches
8
Vitamin B status correlates with mortality
The combined indicator of vitamin B status calculated using 3-parameters (3cB) is negatively associated with mortality among US adults: NHANES 1999 to 2004.
High relevance to cardiovascular health
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 may lower hypertension risk
Pregnancy Metal Mixtures and Blood Pressure and Hypertension in Mid-Life: A Prospective U.S. Cohort Study.
Study reveals essential nutrient benefits
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
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.
Moderate relevance to findings
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
Myocardial infarction with non-obstructive coronary artery caused by coronary artery spasm and an increase in serum homocysteine: a case report.
Relevant to vitamin B12 therapy
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
Relationship between blood pressure variability and vitamin B level in essential hypertension.
Moderate relevance to hypertension research
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 4 Reviews
8.6
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Improved red blood cells
This form of B12 genuinely works, as our lab results confirmed. While dealing with pernicious anaemia linked to blood cancer, I found traditional B12 ineffective. Once we began using this activated version, we observed a halt in the decline of hemoglobin levels, eventually seeing improvement. Regular use kept my red blood cell count above 8.5. It's vital for the formation of red blood cells, and many doctors underestimate its importance, despite the need for sufficient iron.
Read More
8.8
Beneficial for recovery
I have found this product beneficial as it positively impacts cardiovascular disease, cognitive ability, and recovery from fatigue.
7.5
Gradual pain relief
After getting shingles, I struggled with pain despite medical treatment. Knowing B12 could help, I opted for this well-reviewed product. Initially sceptical, I took one tablet nightly. Although the effect wasn't immediate, over two weeks, my pain gradually lessened and eventually vanished. I now take it twice a week.
Read More
8.8
Essential for health
Vitamin B12 is crucial for optimising brain, nerve, and blood health. Deficiencies in this nutrient are alarming, as it reduces fatigue, enhances memory, and promotes the production of red blood cells, crucial in combating cardiovascular disease. For optimal health, it's essential to take B12 regularly.
Read More
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