contraindications of vitamin b12 injection Oral vs. Intramuscular in Vitamin B12 Deficiency • The Blood Project Tirzepatide and Vitamin B12: Monitoring

Because it's not always obvious whether ingredients are derived from animal products or by-products, those following a vegan lifestyle should look for vitamins that are clearly marked "vegan" or have the Certified Vegan seal

People who follow vegan or vegetarian diets, older adults, individuals with digestive issues (like Crohns or celiac), and those taking certain medications (like metformin or acid reducers) are at higher risk of B12 deficiency

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Also, people who have had surgery on their intestines, like weight loss surgery, or have diseases that affect the gut, like Crohns disease or celiac disease, are also at risk of not getting enough vitamin B12