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B12 deficiency may cause nerve damage, such as numbness and tingling in the hands and feet

The biggest advantage of an injection is that it delivers vitamin B12 directly into your system for full absorption

Veterinarians generally recommend that dogs with chronic GI issues have their B12 level tested

A 2025 study presented at the Endocrine Societys annual meeting found that men with obesity or type 2 diabetes who used GLP-1 medications saw both significant weight loss and improved testosterone levels

During this process, 70-80% of nutrients are lost, which means ONLY 20%-30% is absorbed by the body, also known as bioavailability

PMID 29669618