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It is sourced from a third-party manufacturer and supplied strictly as a laboratory research material
This is because peptides can be very easily destroyed in the digestive tract
Meat (beef, chicken, pork) Fish and seafood (salmon, trout, clams, mussels) Eggs and dairy products (milk, cheese, yogurt) Organ meats (liver, kidney) Fortified cereals and nutritional yeast Some plant-based milk alternatives (soy, almond, coconut) fortified with vitamin B12 Patient Testimonials Vitamin B12 Injections FAQs Can anyone get B12 injections
Realistic expectations should be calibrated to study populations, not to social-media testimonials
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