what happens if you use expired bac water Does Need to Be Refrigerated? A Doctor Explains CANLABS: Does BAC Water Expire?

These are not dietary supplements, they are not approved drugs, they are chemicals with no good manufacturing practices (GMP) or quality control testing requirements for identity or contaminants as is required for supplements

Injections may trigger telogen effluvium due to rapid nutrient shifts, but hair usually recovers

The lower the better as long as hypoglycaemia is minimised

For this reason vegetarians and vegans who eat little or no animal products should monitor their vitamin B12 levels plus folate level( another B vitamin)and take a supplement if required

de Luca C, Olefsky JM

Based on contemporary research, more dieticians recommend supplementing B12 when a blood test shows a level less than 350 pg/mL