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Sourcing from reputable suppliers who provide third-party testing certificates, maintain proper storage and handling, offer consistent product quality, and demonstrate transparency about their manufacturing processes helps mitigate these risks
The mechanism is uncertain
Recommended daily intake of vitamin B12 per age category, based on the North-American recommendations are (1): These recommendations apply to getting vitamin B12 from animal products or fortified foods
doi: 10.1038/nature21711 205 MengJLuZLiuHZhangLZhangSChenYet al
In severe cases, cognitive difficulties like confusion or dementia-like symptoms may develop
