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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 Hypervitaminosis A: Effects of Toxic Vitamin A Doses

44 citations , September 1948 in “Radiology”

Too much vitamin A can cause serious health problems.

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 Hypervitaminosis A in a Patient With Alopecia Receiving Renal Dialysis

24 citations , July 1979 in “Archives of Dermatology”

Patients with renal disease may develop vitamin A toxicity even with low-dose supplements.

research Hypervitaminosis A in a Patient with Alopecia Receiving Renal Dialysis

7 citations , July 1979 in “Archives of Dermatology”

Patients with renal disease should be cautious with vitamin A supplements due to risk of toxicity.

research The Skin as a Window on Internal Disorders: Two Cases of Internal Malignancy and Hypervitaminosis B12

October 2020 in “Our Dermatology Online”

Skin changes and high vitamin B12 levels can be early signs of cancer.

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

in Research/Science 166 upvotes 1 year 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 3 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.