can you use expired b12 injections Hi I bought the injectable liquid but there's no by date on it or how long have to use it once it's opened. Anyone know the answer? TIA x is it ok to take

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Am J Physiol Regul Integr Comp Physiol

Vitamins form a group of essential nutrients found in many of the foods we eat, playing a crucial role in maintaining a healthy body, including your eyes, skin, bones, soft tissue, teeth, blood, metabolism, hormones, and DNA

Protein intake of 1.6-2.0 g/kg body weight during a caloric deficit is supported by extensive weight loss research for lean mass preservation (Wycherley et al., 2012)

The takeaway: 5-Amino-1MQ is unique in targeting the fat cell's own metabolism through NAD+, rather than appetite or the growth-hormone axis

So what explains the difference