A 2026 UK review of the 2025 Frontiers in Nutrition magnesium Lthreonate (Magtein) trial better working and episodic memory and sleep in healthy adults the 2023 UK Biobank study linking higher dietary magnesium to larger brain volumes , the foundational Slutsky 2010 Neuron synapticdensity work, the NMDAreceptor magnesium gate and BDNF/TrkB plasticity, why a normal blood test can hide a real shortfall, magnesium Lthreonate vs glycinate, NHS intakes and the 400 mg rule and why correcting magnesium comes first, not a peptide Read the full review Nutritional & Metabolic Neuroscience 9 June 2026 Dihexa for Vitamin D Deficiency Brain Fog: The 2026 Midlife Vitamin DTau Study, the VDRBDNF Mechanism & the UK Review Can Dihexa help vitamin D deficiency brain fog
Use the same lab each time, collect samples at the same time of day, and note any recent illness, surgery, or intense exercise in the week before testing
In rare cases, intramuscular B12 may cause a drop in potassium
General cognitive-health habits studied on their own merits sleep, aerobic exercise, and cardiovascular-risk management have far more human evidence behind them for memory and neuroplasticity than any grey-market compound
