can b12 and d3 injection be taken together

This can be due to having low levels of intrinsic factor in the digestive system, having a digestive condition, or following a plant-based diet prescription https://images.squarespace-cdn.com/content/v1/6969366bf441f41de99b075b/f8757f96-4391-4108-9731-f1e88a12f440/b12-vitamin-injection-men-carla-thomas-med-spa.jpg Size:1000 mcg/ml - 30 ml x 2 Vitamin B12 injection is use for what

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