Consult a healthcare professional before using any copper-containing product if you have a metabolic or hepatic condition
A 2026 UK review of the April 2025 University of Oklahoma Nutrients study showing non-anaemic women with "below expected" iron thought more slowly, iron deficiency without anaemia, the irondopamine (tyrosine hydroxylase) and myelin mechanism, hippocampal BDNF downregulation, NICE/NHS ferritin thresholds, oral and IV iron and why checking ferritin and finding the cause comes first, not a peptide Read the full review Nutritional & Metabolic Neuroscience 7 June 2026 Dihexa for Vitamin B12 Deficiency Brain Fog: The "Normal B12" Study, Homocysteine & the 2026 UK Review Can Dihexa help vitamin B12 deficiency brain fog
Von solchen Anwendungen auerhalb kontrollierter Studien ist daher abzuraten
Most data comes from animal studies, so long-term safety and rare side effects remain unclear
Intravenous antibodies or immunoglobulin (IVIG) can also be used at times for the same reason if the condition is not responsive to steroids
In general, individuals who cannot absorb vitamin B12 correctly may have pernicious anemia
