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Joint pain developing after starting B12 may reflect: Pre-existing musculoskeletal conditions becoming more noticeable Concurrent inflammatory or degenerative joint disease Reactions to excipients in certain formulations The natural course of an underlying condition If you experience persistent or worsening joint symptoms after beginning B12 supplementation, it is advisable to consult your GP or healthcare provider

Thomaidou, S

For precise dosing within research protocols: 1 ml = 100 units (IU) = 100 clicks 0.5 ml (one full rotation of the mechanism) = 50 clicks Examples of dosing for research purposes: 1 click = 0.05 mg (50 mcg) of active substance 2 clicks = 0.10 mg (100 mcg) of active substance 4 clicks = 0.20 mg (200 mcg) of active substance 10 clicks (0.1 ml) = 0.50 mg (500 mcg) of active substance 20 clicks (0.2 ml) = 1.00 mg (1000 mcg) of active substance 50 clicks (0.5 ml / full rotation) = 2.50 mg (2500 mcg) of active substance This mechanical system ensures absolute precision, repeatability, and flexibility when setting micro-doses according to the needs of a specific laboratory protocol, without the need for complex manual dilution

Rudolf 2021, p