Vitamin B12 & Hypothyroidism: What You Must Know Symptoms of vitamin b12 deficiency. Studies show that low levels of vitamin b12 may be more common in people with hypothyroidism. Vitamin b12 is also involved in making and metabolizing thyroid B12 Injections Naturopath Ottawa Dr. Noah Litvak Enhance Your Wellness Today Dr. Noah Litvak, ND On The Go B12 Injection at enTrust Urgent Care Center Clinic Vitamin B12 Injection at BiosenseClinic.com a Licensed Pharmacy B12 Happy Hour B12 Vitamin Shots Santa Rosa, Sonoma, Mendocino The Naturopathic Integrative Medical Clinic of Santa Rosa