For people who already have enough B12, their red blood cells are already working properly, and the body simply gets rid of any extra B12 it doesnt need
doi: 10.3389/fmed.2025.1638981 Received 31 May 2025 Accepted 14 August 2025 Published 10 September 2025 Volume 12 - 2025 Edited by Iain Brownlee, Northumbria University, United Kingdom Reviewed by Qianqian Zhang, Anhui University of Chinese Medicine, China Ion Hobai, Massachusetts General Hospital and Harvard Medical School, United States Updates Copyright 2025 Ukwade, Hernandez, Modi, Raza, Siegel, Nwachukwu, Sarraf, Memon, Booth, Cooper, Boulay and Mutlu
This made a big differencethe pain felt like a brief zap of heat, similar to a curling iron graze, but less intense
Acknowledgements Project supported by the National Natural Science Foundation of China (30672748) and Shandong Administration of Traditional Chinese Medicine (2005-070)
Nadolskys top tip for healthspan is to lift weights, ideally twice per week
Stay consistent and work with a healthcare provider to adjust dosing and track progress