16 citations,
October 2007 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
240 citations,
February 2005 in “Diabetes Care” Patients need long-term care after bariatric surgery to manage potential nutritional and metabolic issues.
July 2024 in “Medical alphabet” Premature graying and hair changes can be treated with certain peptides and possibly targeting the endocannabinoid system.
1 citations,
January 2013 in “Nasza Dermatologia Online” Vitamin B12 deficiency can cause reversible hair color loss in children.
19 citations,
January 2016 in “Dermatology Research and Practice” The study concluded that hair loss in Indian women is not significantly linked to anemia or thyroid problems, but checking thyroid function could help those with ongoing hair loss.
2 citations,
October 2016 in “Nutrition in clinical practice” Vitamin B12 deficiency can cause facial dark spots that go away with treatment.
May 2024 in “Journal of ayurveda and integrated medical sciences” Amra Beej Majja Churna may help improve Vitamin B12 levels and symptoms in vegans.
4 citations,
March 2020 in “JAAD Case Reports” Vitamin B12 deficiency can cause darkening of all nails.
January 2019 in “Kocaeli tıp dergisi” People with chronic hair loss may have a higher chance of Vitamin B12 deficiency.
17 citations,
December 1951 in “Experimental biology and medicine” Vitamin B12 and aureomycin can reverse or reduce cortisone's negative effects on body and hair growth in rats.
25 citations,
January 2017 in “International Journal of Trichology” Most Indian people with hair loss in the study lacked nutrients, especially iron.
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.
16 citations,
January 2008 in “Acta dermato-venereologica” Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.
September 2020 in “Osmangazi tıp dergisi” Thyroid dysfunction, vitamin D and B12 deficiencies, and iron deficiency may be linked to hair loss condition Telogen Effluvium.
10 citations,
August 2021 in “Journal of Cosmetic Dermatology” Most patients with telogen effluvium had low iron and vitamin D levels; iron supplements were commonly prescribed.
5 citations,
December 2020 in “BMC Dermatology” Bariatric surgery improves skin conditions and metabolism but may cause nutritional deficiencies and hair loss.
9 citations,
September 2019 in “Journal of clinical sleep medicine” Vitamin B12 deficiency can rarely cause excessive daytime sleepiness.
Premature graying of hair is linked to vitamin D and B12 deficiencies, thyroid issues, iron imbalance, stress, and lifestyle habits, and affects quality of life.
1 citations,
December 2020 in “Harran Üniversitesi týp fakültesi dergisi” Many people with hair loss had low iron and ferritin levels.
January 2024 in “İstanbul Kuzey Klinikleri” Low ferritin levels are linked to increased hair loss; no link found between vitamin B12, TSH levels, and hair loss.
August 2022 in “International Journal of Health Sciences (IJHS)” Low levels of zinc, ferritin, and vitamin B12 are linked to severe hair loss in pregnant women during their last two trimesters.
July 2023 in “Dermatology practical & conceptual” Low hemoglobin levels are significantly correlated with hair loss in women with Telogen Effluvium.
13 citations,
May 2012 in “Cutaneous and ocular toxicology” Alopecia areata is not linked to vitamin B12 deficiency.
February 2025 in “Journal of Cosmetic Dermatology” Ferritin and vitamin B12 deficiencies are common causes of hair loss in women aged 18-45.
4 citations,
January 2011 in “Journal of Cosmetics, Dermatological Sciences and Applications” Vitamin B12 may promote hair growth by affecting certain cell processes.
July 2022 in “Journal of Dermatology and Dermatologic Surgery” People with chronic hair loss often have lower Vitamin B12 levels.
January 2022 in “Indian journal of paediatric dermatology” Children with early graying hair might have lower levels of certain nutrients like zinc, magnesium, and Vitamin B12.
134 citations,
December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
63 citations,
May 2017 in “American Journal of Clinical Dermatology” People with alopecia areata often have lower levels of vitamin D, zinc, and folate, but more research is needed to understand if supplements can help treat it.