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B12 injections deliver the vitamin directly into your muscle tissue, allowing for faster absorption compared to oral supplements
The underlying logic is the same: match the delivery vehicle to the compounds pharmacokinetic profile and the studys specific endpoints
X.SabolL.BartonK.HegdeS.MyakalaK.et al (2025)
Injection technique matters too
Are all vitamin B12 injections the same
Lintner, K., Gerstein, F., & Solish, N
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