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Vitamin B12 is an essential nutrient that your body needs for processes like DNA synthesis, energy production, and central nervous system function ( Studies suggest that up to 20% of people over the age of 60 in the United States and the United Kingdom are deficient in the vitamin

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For patients whose deficiency is severe or accompanied by broader nutritional gaps, an IV infusion may offer advantages that a single-nutrient shot cannot match

Semaglutide may lead to gastrointestinal problems, such as nausea, diarrhea, or constipation