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D., Buring, J
When the anemia is severe and the red blood cell count is extremely low, blood transfusions may be necessary for the first couple of days until the vitamin B 12 injections begin working
High-Performance Liquid Chromatography (HPLC) Every single production batch must be cleared by an independent testing facility via HPLC
Nature Metabolism 2021 (single-nuclei RNA-seq)
Good dietary sources include: Vitamin B2: dairy, eggs, lean meats, fish, and leafy greens Vitamin B12: meat, fish, poultry, eggs, and dairy (plant-based eaters may want to pay particular attention, as B12 is found almost exclusively in animal foods) Keeping alcohol in check is also worth considering
