Refrigeration is recommended
Unlike vitamin B12 deficiency, which produces well-recognised neurological and haematological manifestations, excess B12 does not typically generate a distinct clinical syndrome
When your body lacks this vital nutrient, you may experience a range of debilitating symptoms, including persistent fatigue, anemia, neurological challenges, digestive disruptions, mood swings, muscle weakness, vision impairments, glossitis, and even skin pallor or jaundice
Its essential for creating red blood cells, maintaining nerve health, and supporting your energy levels
Therefore, there is a very low risk of B12 toxicity, even at high doses like 1,000 mcg a day
Consider NAD+ injections or IV hydration therapy