Duration of annual canine flea and tick protection provided by dog owners in Spain
Proton pump inhibitors and similar medications that lower stomach acid might decrease the absorption of vitamin B12 from food, but this is less of a concern when receiving B12 injections because they bypass the digestive system entirely
Animal foods particularly high in vitamin B12 include bluefin tuna, Pacific oysters, salmon, Atlantic herring, mackerel, sardines, trout, and tuna
Vitamin B12 injections are given into a muscle and are commonly used to treat or prevent B12 deficiency in people who need this route
The choice between Vitamin B12 supplements vs injections depends on several factors, including: Your needs: If you have a severe B12 deficiency or require rapid B12 replenishment, B12 shots may be the more effective option