Signs of intramuscular injection include deeper, more intense pain during injection, increased bruising, faster onset of side effects (nausea, headache appearing within hours instead of the typical timeline), and a sore, tender feeling in the thigh muscle for a day or more after injection
Medication use , particularly long-term metformin therapy, proton pump inhibitors, and H2-receptor antagonists, increases deficiency risk
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B vitamins including biotin and folate may support healthy-looking skin, hair, and nails as part of your overall wellness routine
Protein expression studies