2026 Trials on Neurodegenerative Benefits: Alzheimers and Parkinsons: The Neurodegenerative B12 Study (phase 2, n=1,000, NIA 2025) investigates 1,000-5,000 mcg IM doses, with preliminary 2025 data showing a 10-15% reduction in cognitive decline (MMSE +1-2 points) and 5-10% lower tau protein levels in MCI patients
However, it may take a few days or weeks before your vitamin B12 levels and symptoms, such as extreme tiredness or lack of energy, start to improve
Both conditions are unsightly and can affect medication absorption
Improved Sleep Quality Many clients report better sleep after beginning B12 therapy: Helps regulate circadian rhythms and sleep-wake cycles Supports production of melatonin, the sleep hormone Reduces daytime fatigue that can disrupt sleep patterns Helps balance neurotransmitters involved in sleep regulation Quality sleep further enhances energy levels, creating a positive cycle of improvement
The answer is the ideal amount of B12 varies depending on factors like age
Make sure that your clinic or pharmacy works with reputable, high-quality compounding pharmacies that follow strict safety protocols