Absorption is the most critical factor, especially for glutathione
This work was supported by grants from the Postgraduate Education Innovation program of Shanxi Province (2024SJ155, YW), the central government guiding local funds for scientific and technological development (YDZJSX20231A062, CX), scientific and technological achievements transformation guidance project of Shanxi Province (202204021301067, CX), the National Natural Science Foundation of China (82350710800, 82374470, JX), National Key R&D Program of China (2024YFA0919200, JX), Shenzhen Science and Technology Program (KCXFZ20240903094059020, JX), and Shenzhen Medical Research Fund (B2302005, JX)
Ready to actually use these acids
Certain populations face elevated risk of developing very high serum B12 levels, though true toxicity remains rare even in these groups
doi: 10.3390/antiox10071044, 9