The MTHFR C677T variant causes a change in the shape of the MTHFR enzyme and decreases its ability to bind to FAD.[ref] If you have high homocysteine (a marker for heart disease risk), several studies show that increasing riboflavin lowers homocysteine levels in those with the A/A genotype.[ref][ref] Other research points to riboflavin lowering homocysteine levels only if vitamin B6 levels are adequate.[ref] Bone health : Low riboflavin status in women with MTHFR C677T increases the risk of fractures in osteoporosis.[ref][ref] Related article : Osteoporosis risk factors and genetic variants Heart health: The C677T variant causes a change in the shape of the MTHFR enzyme and decreases its ability to bind to FAD.[ref] If you have high homocysteine (a marker for heart disease risk), several studies show that increasing riboflavin lowers homocysteine levels in those with the A/A genotype.[ref][ref] A 2025 study found that low riboflavin levels combined with the MTHFR C677T homozygous genotype were at an increased risk of hypertension.[ref] Other research indicates that riboflavin lowers homocysteine levels only when vitamin B6 levels are adequate.[ref] Related Articles : MTHFR, Riboflavin, and Blood Pressure | Vitamin B6 Genes Riboflavin affects gene expression: In people with MTHFR C677T (AA genotype, below in genotype report), researchers found that there was higher DNA methylation of NOS3

VEGF interacts with key immune cells in the tumour micro-environment (TME), namely CD4+ forkhead box protein P3 (FOXP3) + regulatory T cells, which a strong suppressor of anticancer immunity
Over Dose If you accidentally administer more Full-B12 Injection than prescribed, you might experience symptoms like mild diarrhoea or itching
While the initial effects may be felt shortly after the injection, B12 levels gradually decline over time, necessitating regular maintenance doses to sustain optimal levels
& Ashton-Miller, J
doi:10.2460/javma.2000.217.650