Additionally, high levels of fumarate react with the cysteine group of mitochondrial aconitase-2 and iron-sulfur cluster binding protein-2, facilitating cellular metabolic adaptation to stresses 138
The better choice depends on whether you want a broader vitamin and mineral blend or a formulation focused on Vitamin C and Glutathione
J Mol Struct (2020) 1202:127251
People with absorption problems
Seek medical attention promptly if you experience symptoms that could suggest serious underlying conditions, including: Unexplained weight loss or persistent fatigue Jaundice (yellowing of skin or eyes), abdominal pain, or swelling Easy bruising or bleeding , or unusual skin rashes Night sweats , fever, or enlarged lymph nodes Reduced urine output , significant swelling in legs or ankles Persistent itching without obvious skin cause These symptoms may indicate liver disease, haematological disorders, or renal impairmentconditions that can elevate B12 and require specialist assessment