79 citations
,
April 1996 in “JAMA” Taking too many selenium supplements can cause serious health problems like hair loss and fatigue.
September 2025 in “Clinical Toxicology” Contaminated wheat caused hair loss and other symptoms due to high selenium, but washing it with alkaline water helped.
36 citations
,
January 2010 in “Human & experimental toxicology” Eating paradise nuts led to selenium poisoning, causing nausea, hair loss, and other symptoms in two women.
13 citations
,
January 2012 in “International Journal of Trichology” Eating too many paradise nuts for cancer prevention caused a woman to lose all her hair due to selenium poisoning.
5 citations
,
May 1983 in “Australian journal of biological sciences” Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.
382 citations
,
February 2010 in “Archives of Internal Medicine” A manufacturing error in a dietary supplement caused severe selenium poisoning, affecting many people and highlighting the need for stricter quality control.
27 citations
,
June 2010 in “Journal of the American Academy of Dermatology” Excessive selenium in supplements can cause hair loss and nail issues.
Selenium can be toxic to animals, causing serious health issues, especially in horses.
49 citations
,
February 2020 in “Scientific reports” The nanohybrid system significantly improved wound healing and showed strong antibacterial activity.
78 citations
,
December 2011 in “Clinical toxicology” Excessive selenium from a supplement caused toxicity but patients recovered with care.
7 citations
,
January 1995 in “Journal American Society of Mining and Reclamation” Excess selenium and sulfur in plants can harm animals, causing symptoms like hair loss and poor reproduction.
July 2025 in “International Journal of Pharmaceutical Sciences Review and Research” Balanced selenium intake from wheat is crucial for preventing hair loss.
11 citations
,
January 1993 in “Journal of Veterinary Diagnostic Investigation” Horses in western Iowa got sick from high selenium in local alfalfa hay.
1 citations
,
June 2009 in “Integrated Environmental Assessment and Management” Selenium is essential in small amounts but toxic in excess, requiring careful management.
30 citations
,
January 2023 in “EFSA journal” Adults should not consume more than 255 micrograms of selenium per day to avoid risk of hair loss and other side effects.
12 citations
,
June 2023 in “Journal of trace elements in medicine and biology” Eating too much selenium can cause bad breath, hair loss, and nail changes, with harmful effects starting at low daily doses.
1 citations
,
December 2019 Selenium is essential for health, but too much or too little can cause problems; blood selenium levels are a good measure of intake.
1 citations
,
August 2023 in “Journal of cosmetic dermatology (Print)” Too much selenium can cause hair loss and nail problems.
September 2023 in “Food and chemical toxicology” High doses of some selenium supplements caused liver and reproductive harm in rats.
January 2019 in “Springer eBooks” Some chemicals and drugs can cause hair loss, which usually grows back after stopping the treatment.
4 citations
,
January 2020 in “Skin appendage disorders” Toxic metals can cause hair loss and should be considered by doctors.
26 citations
,
January 2018 in “Skin appendage disorders” Thallium, mercury, selenium, and colchicine strongly cause hair loss.
January 2024 in “Skin appendage disorders” Environmental pollutants can damage hair health and cause hair loss.
7 citations
,
October 2020 in “Dermatology practical & conceptual” Some skin, hair, and nail supplements can be toxic, interact with medications, affect lab tests, and may increase cancer risk.
5 citations
,
April 2023 in “Journal of Multidisciplinary Healthcare” Hair selenium levels can indicate nutritional status in very old people.
1 citations
,
December 2021 in “Animals” Low zinc and selenium levels in sheep are linked to hair loss and thyroid problems.
November 2025 in “Advances in Education Humanities and Social Science Research” Some cosmetic ingredients can harm health, causing issues like allergies, cancer, and skin problems.
February 2024 in “Research Square (Research Square)” People today have lower levels of arsenic, lead, cadmium, and iron in their hair than people did 100 years ago.
43 citations
,
July 2024 in “Nutrients” A balanced diet with essential micronutrients is crucial for healthy thyroid function.
Certain chemicals and drugs can cause hair loss.