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GlossaryVitamin A Toxicity (Hypervitaminosis A)

excessive vitamin A intake causing harmful health effects

Vitamin A Toxicity, also known as Hypervitaminosis A, occurs when there is an excessive accumulation of vitamin A in the body, typically due to overconsumption of supplements or certain animal-based foods. This condition can lead to symptoms such as nausea, dizziness, headaches, and even more severe effects like liver damage, bone abnormalities, and hair loss. It is important to maintain a balanced intake of vitamin A to avoid these adverse health effects.

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research Hepatic and Dermatologic Manifestations of Chronic Hypervitaminosis A in Adults: Report of Two Cases

28 citations, March 1986 in “The American journal of medicine”

Too much vitamin A can cause liver damage and skin issues.

research Nutrition and Hair Health: The Impact of Nutritional Deficiencies

70 citations, June 2010 in “Clinics in Dermatology”

Certain groups may need vitamin supplements to improve hair health and prevent other health problems.

research Vitamin A Toxicity: When One a Day Doesn't Keep the Doctor Away

32 citations, January 2006 in “Liver transplantation”

Vitamin A toxicity can cause severe health issues and may require a liver transplant if other treatments fail.

research Nutrition and the Deleterious Side Effects of Nutritional Supplements

24 citations, June 2010 in “Clinics in Dermatology”

Taking too many vitamin and mineral supplements can cause serious health problems.

research Preliminary Toxicity Profile of Arotinoids SMR-2 and SMR-6 in Male B6D2F1 Mice

15 citations, May 1987 in “Fundamental and applied toxicology”

SMR-2 and SMR-6 are much more toxic than retinoic acid, causing severe side effects.

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community Vitamin D deficiency strongly correlates with androgenic alopecia, FMPH and telogen effluvium

in Research/Science 157 upvotes 1 month ago

Vitamin D deficiency is linked to hair loss, and supplementation with vitamin D can improve conditions like androgenic alopecia and telogen effluvium. Users discussed various dosages of vitamin D, emphasizing the importance of getting blood tests to determine the appropriate amount.

community Going to try and reverse MPB naturally.

in Treatment 55 upvotes 2 years ago

A user is trying to reverse male pattern baldness (MPB) naturally by taking high doses of Vitamin D, improving diet, exercising, reducing stress, and other lifestyle changes, but plans to use finasteride if no results are seen in 60 days. Other users are skeptical, advising medical treatments like finasteride and warning against potential vitamin D overdose and the ineffectiveness of natural remedies for genetic hair loss.