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But modern life can make it easy to fall short - particularly if you: - Feel tired, sluggish, or run down - Experience low mood or brain fog - Follow a vegan or vegetarian diet - Smoke or consume alcohol regularly - Have difficulty absorbing nutrients (e.g., due to IBS or gastric issues) Low B12 levels often go undiagnosed but can significantly impact how you feel, think, and perform
Severe vitamin B12 deficiency in pregnancy mimicking HELLP syndrome. Case Reports in Obstetrics and Gynecology 2019 (2019)
NewStimulants, Diet & Cognitive Neuroscience 4 July 2026 Dihexa for Caffeine, Coffee & Energy Drink Brain Fog: Adenosine, the Crash, Withdrawal & the 2026 UK Review I run on coffee so why am I foggier than ever? The counter-intuitive answer: most caffeine brain fog is caffeine wearing off , not the caffeine
Harrell, C
For someone hoping to increase libido in the short term, a lower-dose, shorter trial with tight symptom tracking could be all thats necessary