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That preservative is what makes it different from plain sterile water: it lets the vial be used for repeated withdrawals
Vitamin B12 (cobalamin) plays a key role in: Making healthy red blood cells (helping prevent certain types of anaemia) Supporting nerve function Helping normal energy metabolism Supporting cognitive function and mood (when deficiency is present) Because the body doesnt produce B12, we rely on dietary sources (primarily animal products and fortified foods) and on absorption through the gut
These can include rapid heartbeat, chest pain, confusion, muscle cramps and weakness, hives, skin rashes, and difficulty breathing or swallowing [1]
4.2 Animals Approximately six-week-old SD rats weighing approximately 220 g were purchased from Beijing Vital River Laboratory Animal Technology Co., Ltd
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