Last update
4/4/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 10 Researches
7.4
USERS' SCORE
Moderately Good
Based on 19 Reviews
7.9
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Folate (400 mcg as (6S)-5-MTHF [(6S)-5-Methyltetrahydrofolate Glucosamine Salt)
680 mcg DFE‡
170%
Top Medical Research Studies
8
We examined the connection between folic acid levels and stroke risk in a study involving nearly 5,000 individuals from a Chinese community. We discovered that participants with higher folate levels had a significantly lower risk of experiencing strokes.
Specifically, those in the highest folate group had a 32% lower risk of stroke compared to those with the lowest levels. We also found that homocysteine levels played a significant role in this relationship. Interestingly, the genetic variation of the MTHFR gene influenced how folate affected stroke risk, revealing a more complex interaction.
Specifically, those in the highest folate group had a 32% lower risk of stroke compared to those with the lowest levels. We also found that homocysteine levels played a significant role in this relationship. Interestingly, the genetic variation of the MTHFR gene influenced how folate affected stroke risk, revealing a more complex interaction.
Read More
8
Folate impacts heart health progression
We focused on whether folate and vitamin B12 levels influence the progression of carotid intima-media thickness (cIMT), an early sign of atherosclerosis. Our research covered over 4,200 participants in São Paulo over eight years.
While vitamin B12 showed no significant connection, participants with the highest folate levels experienced a slower increase in cIMT compared to those with the lowest levels. This highlights folate’s potential positive impact on cardiovascular health, particularly in populations with adequate serum folate.
While vitamin B12 showed no significant connection, participants with the highest folate levels experienced a slower increase in cIMT compared to those with the lowest levels. This highlights folate’s potential positive impact on cardiovascular health, particularly in populations with adequate serum folate.
Read More
8
We explored the role of the MTHFR C677T gene polymorphism in patients with coronary heart disease and hypertension using folic acid along with enalapril treatment. Over 540 patients were divided into groups based on folic acid treatment and monitored for a year.
We observed that those receiving folic acid had a lower recurrence of cardiovascular events compared to others. Additionally, the lipid levels showed improvement in the folic acid group. Therefore, folic acid may enhance overall treatment outcomes and patient compliance in managing blood pressure.
We observed that those receiving folic acid had a lower recurrence of cardiovascular events compared to others. Additionally, the lipid levels showed improvement in the folic acid group. Therefore, folic acid may enhance overall treatment outcomes and patient compliance in managing blood pressure.
Read More
Most Useful Reviews
9
Boosts immune function
3 people found this helpful
Vitamin B9 greatly aids cell division and supports the immune and cardiovascular systems. I take one methyl folate capsule daily, benefitting from its highly absorbable and effective form.
Read More
9
Bioavailability advantage
1 people found this helpful
Great! The absorbency of this product is excellent. After nearly a year of use, it has significantly supported my efforts with iron problems. Methyl folate, being bioavailable, promotes cardiovascular health effectively without causing any allergic reactions.
Read More
9
Cardiovascular remedy
1 people found this helpful
An excellent remedy for the cardiovascular system and the nervous system.
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 10 Researches
7.4
- All Researches
We investigated the link between maternal folic acid supplementation and the risk of congenital heart disease (CHD) in children, considering genetic factors too. In a hospital-based case-control study with 595 children diagnosed with CHD and 605 healthy children, we found that mothers who took folic acid reduced the risk of CHD in their children.
The data indicated a noteworthy interaction between maternal supplementation and certain genetic variants in the children, particularly one MTRR gene polymorphism. However, it's important to note that further research with larger samples is necessary to strengthen these findings.
The data indicated a noteworthy interaction between maternal supplementation and certain genetic variants in the children, particularly one MTRR gene polymorphism. However, it's important to note that further research with larger samples is necessary to strengthen these findings.
Read More
8
We examined the connection between folic acid levels and stroke risk in a study involving nearly 5,000 individuals from a Chinese community. We discovered that participants with higher folate levels had a significantly lower risk of experiencing strokes.
Specifically, those in the highest folate group had a 32% lower risk of stroke compared to those with the lowest levels. We also found that homocysteine levels played a significant role in this relationship. Interestingly, the genetic variation of the MTHFR gene influenced how folate affected stroke risk, revealing a more complex interaction.
Specifically, those in the highest folate group had a 32% lower risk of stroke compared to those with the lowest levels. We also found that homocysteine levels played a significant role in this relationship. Interestingly, the genetic variation of the MTHFR gene influenced how folate affected stroke risk, revealing a more complex interaction.
Read More
8
Folate impacts heart health progression
We focused on whether folate and vitamin B12 levels influence the progression of carotid intima-media thickness (cIMT), an early sign of atherosclerosis. Our research covered over 4,200 participants in São Paulo over eight years.
While vitamin B12 showed no significant connection, participants with the highest folate levels experienced a slower increase in cIMT compared to those with the lowest levels. This highlights folate’s potential positive impact on cardiovascular health, particularly in populations with adequate serum folate.
While vitamin B12 showed no significant connection, participants with the highest folate levels experienced a slower increase in cIMT compared to those with the lowest levels. This highlights folate’s potential positive impact on cardiovascular health, particularly in populations with adequate serum folate.
Read More
8
We explored the role of the MTHFR C677T gene polymorphism in patients with coronary heart disease and hypertension using folic acid along with enalapril treatment. Over 540 patients were divided into groups based on folic acid treatment and monitored for a year.
We observed that those receiving folic acid had a lower recurrence of cardiovascular events compared to others. Additionally, the lipid levels showed improvement in the folic acid group. Therefore, folic acid may enhance overall treatment outcomes and patient compliance in managing blood pressure.
We observed that those receiving folic acid had a lower recurrence of cardiovascular events compared to others. Additionally, the lipid levels showed improvement in the folic acid group. Therefore, folic acid may enhance overall treatment outcomes and patient compliance in managing blood pressure.
Read More
8
We explored the relationship between folic acid levels and the outcomes of ischemic stroke in a study involving over 3,500 patients. Our findings indicated that higher folate levels were linked to a 29% reduced risk of death and serious disability after three months.
Conversely, high homocysteine levels correlated with a 52% increased risk of these adverse outcomes. Additionally, we found that part of folate's protective effect was mediated through homocysteine levels. This suggests that folic acid may play a crucial role in improving ischemic stroke prognosis.
Conversely, high homocysteine levels correlated with a 52% increased risk of these adverse outcomes. Additionally, we found that part of folate's protective effect was mediated through homocysteine levels. This suggests that folic acid may play a crucial role in improving ischemic stroke prognosis.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 19 Reviews
7.9
- All Reviews
- Positive Reviews
- Negative Reviews
9
Boosts immune function
3 people found this helpful
Vitamin B9 greatly aids cell division and supports the immune and cardiovascular systems. I take one methyl folate capsule daily, benefitting from its highly absorbable and effective form.
Read More
9
Bioavailability advantage
1 people found this helpful
Great! The absorbency of this product is excellent. After nearly a year of use, it has significantly supported my efforts with iron problems. Methyl folate, being bioavailable, promotes cardiovascular health effectively without causing any allergic reactions.
Read More
9
Cardiovascular remedy
1 people found this helpful
An excellent remedy for the cardiovascular system and the nervous system.
Read More
9
Supports DNA health
Quatrefolic® is a metabolically active folate, more potent than regular folic acid. It is essential for supporting DNA, proper cell division, cardiovascular health, and mental wellbeing.
Read More
7.5
Maintains cardiovascular health
178 people found this helpful
It is the best easily digestible form of folic acid for cardiovascular and nervous systems, as well as for proper cell division. A vital supplement for those planning a pregnancy.
Read More
Frequently Asked Questions
7.5
Lessens stress impacts
12 people found this helpful
The easily absorbed form of methylfolate helps the cardiovascular and nervous systems, making me less anxious and more resilient to stress.
7.5
Maintains cardiovascular health
178 people found this helpful
It is the best easily digestible form of folic acid for cardiovascular and nervous systems, as well as for proper cell division. A vital supplement for those planning a pregnancy.
8
We examined the connection between folic acid levels and stroke risk in a study involving nearly 5,000 individuals from a Chinese community. We discovered that participants with higher folate levels had a significantly lower risk of experiencing strokes.
Specifically, those in the highest folate group had a 32% lower risk of stroke compared to those with the lowest levels. We also found that homocysteine levels played a significant role in this relationship. Interestingly, the genetic variation of the MTHFR gene influenced how folate affected stroke risk, revealing a more complex interaction.
Specifically, those in the highest folate group had a 32% lower risk of stroke compared to those with the lowest levels. We also found that homocysteine levels played a significant role in this relationship. Interestingly, the genetic variation of the MTHFR gene influenced how folate affected stroke risk, revealing a more complex interaction.
We investigated the link between maternal folic acid supplementation and the risk of congenital heart disease (CHD) in children, considering genetic factors too. In a hospital-based case-control study with 595 children diagnosed with CHD and 605 healthy children, we found that mothers who took folic acid reduced the risk of CHD in their children.
The data indicated a noteworthy interaction between maternal supplementation and certain genetic variants in the children, particularly one MTRR gene polymorphism. However, it's important to note that further research with larger samples is necessary to strengthen these findings.
The data indicated a noteworthy interaction between maternal supplementation and certain genetic variants in the children, particularly one MTRR gene polymorphism. However, it's important to note that further research with larger samples is necessary to strengthen these findings.
8
We explored the role of the MTHFR C677T gene polymorphism in patients with coronary heart disease and hypertension using folic acid along with enalapril treatment. Over 540 patients were divided into groups based on folic acid treatment and monitored for a year.
We observed that those receiving folic acid had a lower recurrence of cardiovascular events compared to others. Additionally, the lipid levels showed improvement in the folic acid group. Therefore, folic acid may enhance overall treatment outcomes and patient compliance in managing blood pressure.
We observed that those receiving folic acid had a lower recurrence of cardiovascular events compared to others. Additionally, the lipid levels showed improvement in the folic acid group. Therefore, folic acid may enhance overall treatment outcomes and patient compliance in managing blood pressure.
8
Folate impacts heart health progression
We focused on whether folate and vitamin B12 levels influence the progression of carotid intima-media thickness (cIMT), an early sign of atherosclerosis. Our research covered over 4,200 participants in São Paulo over eight years.
While vitamin B12 showed no significant connection, participants with the highest folate levels experienced a slower increase in cIMT compared to those with the lowest levels. This highlights folate’s potential positive impact on cardiovascular health, particularly in populations with adequate serum folate.
While vitamin B12 showed no significant connection, participants with the highest folate levels experienced a slower increase in cIMT compared to those with the lowest levels. This highlights folate’s potential positive impact on cardiovascular health, particularly in populations with adequate serum folate.
References
- Liang Z, Fan F, Liu B, Li K, Chen H, et al. Association Between Serum Folate Concentrations and 10-Year Stroke Risk in a Prospective Community Cohort: Mediation and Interaction Analyses. Nutrients. 2024;17. 10.3390/nu17010159
- Li L, Ou J, Chen Y, Chen Q, Luo M, et al. Association of maternal folic acid supplementation and offspring MTRR gene polymorphism with congenital heart disease: a hospital-based case-control study in Han population. J Health Popul Nutr. 2024;43:220. 10.1186/s41043-024-00699-w
- 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. 10.1186/s12889-024-21005-7
- Palchetti CZ, Gonçalves NG, Suemoto CK, Santos IS, Lotufo PA, et al. Serum folate levels, but not vitamin B12, are associated with slower progression in carotid intima-media thickness in a population exposed to mandatory folic acid fortification. Clin Nutr ESPEN. 2025;65:144. 10.1016/j.clnesp.2024.11.034
- Dong J, Li Z, Wang C, Zhang R, Li Y, et al. Dietary folate intake and all-cause mortality and cardiovascular mortality in American adults with non-alcoholic fatty liver disease: Data from NHANES 2003 to 2018. PLoS One. 2024;19:e0314148. 10.1371/journal.pone.0314148
- Kaushik A, Bhattacharjee D, Chaudhary V, Dahal S, Devi NK, et al. Hypertension and global DNA methylation: a population-based study in rural, Punjab, India. Sci Rep. 2024;14:25826. 10.1038/s41598-024-77437-z
- Ma L, Zeng L, Wang X. MTHFR C677T gene polymorphism in patients with coronary heart disease and hypertension treated with enalapril and folic acid: implications for prognosis. Cell Mol Biol (Noisy-le-grand). 2024;70:142. 10.14715/cmb/2024.70.9.20
- Shi M, Zheng J, Liu Y, Mao X, Wu X, et al. Folate, Homocysteine, and Adverse Outcomes After Ischemic Stroke. J Am Heart Assoc. 2024;13:e036527. 10.1161/JAHA.124.036527
- 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. 10.1038/s41371-024-00955-w
- Prasad K. Atherogenic Effect of Homocysteine, a Biomarker of Inflammation and Its Treatment. Int J Angiol. 2024;33:262. 10.1055/s-0044-1788280
Data last updated:
