Results may show: Low levels can cause tingling, fatigue, memory problems, or mood changes.
Additional notes: Vegetarians, vegans, and people with gut absorption issues are more likely to be low.
Before your appointment: No preparation needed. Mention any supplements you take.
Why it matters: B12 is essential for nerve function, red blood cell production, and brain health.
How often: As advised, especially if symptoms or deficiencies are ongoing.
