Any change in appearance, including crystallization, precipitation, or color change, indicates that the medication should not be used and should be returned to the pharmacy for proper disposal
Keep in mind that there are no toxicity levels for B12
Mental and emotional factors like stress, anxiety, and depression can also affect the release of stomach acid needed to digest protein (which ensures that B12 is released from your food), says Kozlowski
These reactions decrease appetite , and gastric emptying diminishes slightly
However, I have it on good authority that this is your body adapting and improving your cardiovascular fitness The second side effect is arguably a positive benefit, as it can help someone who struggles with exercise get to the point where it easily becomes a daily habit almost like exercise in a pill