16 citations,
January 2008 in “Acta dermato-venereologica” Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.
240 citations,
February 2005 in “Diabetes Care” Patients need long-term care after bariatric surgery to manage potential nutritional and metabolic issues.
August 2023 in “Natural Resources for Human Health” Vegetarians should take B vitamin supplements to avoid health issues.
January 2015 in “Endocrine updates” Bariatric surgery patients need careful before and after surgery care for safety and long-term health.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.