The Claim
In elderly individuals, supplementation with 400 μg folic acid and 100 μg vitamin B12 results in homocysteine-lowering effects that are strongly dependent on baseline homocysteine levels, with greater reductions observed in those with higher initial concentrations (p<0.001), indicating a dose-response relationship within the studied population.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In older adults, taking a daily supplement of 400 micrograms of folic acid and 100 micrograms of vitamin B12 lowers homocysteine levels more in those who start with higher levels than in those who start with lower levels.
See the scientific wording
Homocysteine-lowering effects of a 400 μg folic acid and 100 μg vitamin B12 supplement in elderly individuals are strongly dependent on baseline homocysteine levels, with greater reductions observed in those with higher initial concentrations (p<0.001), indicating a dose-response relationship within the studied population.
When folic acid and vitamin B12 are taken, they are converted into active forms that work together to convert homocysteine into methionine. This process removes homocysteine from the blood. The more homocysteine is present to begin with, the more this conversion pathway is activated, leading to a bigger drop in homocysteine levels.
What the research says
1 studyPeople who started with higher homocysteine levels saw their levels drop more after taking folic acid and B12 pills than those who started lower — the higher the starting level, the bigger the drop.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.