16 citations,
January 2008 in “Acta dermato-venereologica” Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.
5 citations,
August 2015 in “Sultan Qaboos University medical journal” Vitamin B12 deficiency can cause skin darkening and other symptoms, which improve with B12 supplements.
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.