Some symptoms of vitamin B12 deficiency include: Weakness and tiredness Pale or yellowish skin Loss of appetite Heart palpitations Mouth or tongue soreness Tingling or "pins and needles" sensation in your hands and feet Shortness of breath Dizziness Blurry vision Mood swings or personality changes You are more at-risk for developing vitamin B12 deficiency if you are: Pregnant Over 65 Vegan Take medicine for diabetes Take medicine for heartburn Have had surgery to remove part of your bowels Medically Reviewed on 6/23/2026 Mayo Clinic: "Vitamin B-12." National Institutes of Health: "Vitamin B12." Oregon State University: "Vitamin B12." Top What Happens if You Take Too Much Vitamin B12 Related Articles 22 Healthy Foods High in B VitaminsAny deficiency of B vitamins can lead to various health conditions
Supplementing iron, particularly if severe deficiency is diagnosed, can help alleviate these symptoms and improve appetite
Coexisting conditions, such as autoimmune hepatitis (AIH) or viral hepatitis, can further complicate treatment and accelerate liver damage [17, 18]
More on Phosphatidylserine (PS) Bacopa Monnieri, 24% bacosides and 9 bioactives Ayurvedic cognitive herb that supplies active nootropic bacosides Supplies and amplifies cell-protective antioxidant activity in the brain Promotes brain chemicals acetylcholine, GABA and serotonin Animal research suggests it may boost cerebral blood flow by 25% Supports memory performance, both short-range and long-range Shown to slow the rate of forgetting newly acquired knowledge Helps with mental processing, cognition under stress and relaxation Best known as a nootropic for students and other learners 24% bacosides (calibrated for 9 bioactives) is the best Bacopa form
New therapeutic directions in type II diabetes and its complications: mitochondrial dynamics
Nutritional priorities to support GLP-1 therapy for Obesity: A joint advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and the Obesity Society