from food. That is why NASCOBAL ® may be a good option. It is a fine-mist nasal spray that . gets absorbed directly into the bloodstream, bypassing the stomach and digestive tract. It is odorless and tasteless. NASCOBAL ® dosing is simple: 1 spray, 1 nostril, 1x a week* NASCOBAL ® Nasal Spray is the only . FDA-approved vitamin B. 12. nasal ...