Possible signs of low Vitamin B12 may include: Fatigue or low energy Weakness Numbness or tingling sensations Difficulty walking or balance issues Mood changes Decreased appetite Digestive symptoms A smooth, tender tongue These symptoms can also be caused by other health conditions, so it is important to speak with a healthcare provider if you have ongoing symptoms or concerns about Vitamin B12 deficiency
3 Progress in Neurobiology
Anyone with digestive conditions affecting absorptionincluding Crohns disease, celiac disease, or history of procedures affecting stomach or intestinesneeds the digestive bypass injections provide
Last reviewed: June 16, 2026 Last updated: June 16, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
It also plays an important part in turning food into energy
The final column reflects other potential applications already popular among peptide users
