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A man with pellagra, which is caused by a chronic lack of vitamin B 3 in the diet. Severe deficiency of niacin in the diet causes the disease pellagra, characterized by diarrhea, sun-sensitive dermatitis involving hyperpigmentation and thickening of the skin (see image), inflammation of the mouth and tongue, delirium, dementia, and if left untreated, death. [7]
Psoriasis is a chronic skin condition that causes itchy, scaly patches to appear on the skin, including the scalp. “Scalp psoriasis is a condition where your immune system gets angry at the skin ...
Pellagra is a disease caused by a lack of the vitamin niacin (vitamin B 3). [2] Symptoms include inflamed skin, diarrhea, dementia, and sores in the mouth. [1] Areas of the skin exposed to friction and radiation are typically affected first. [1]
Flushing of skin (associated with niacin (vitamin B3) overdose) Skin disturbances (e.g. dryness, itching, cracking of skin, rashes, increased sensitivity to sun) Changes of hair texture (e.g. thickening and/or clumping of hair) Appetite loss; Constipation (associated with iron or calcium overdose) Nausea and vomiting; Diarrhoea
Niacin has been linked to a higher risk of heart disease. It is often added to flour and fortified cereals in the U.S. The B vitamin used to be a popular medication to lower high cholesterol.
It causes itching, inflammation, a rash, cracked skin, blisters, and scabs. “The most common culprits are the shampoos, conditioners, hair dyes (especially the ones with paraphenylenediamine–a ...
It becomes prominent following exposure to sun, and can be itchy with a burning feeling and pain. [1] It can blister and weep, and turn into thick dark skin, with a coppery hue. [1] If prolonged, the skin becomes thin, dry and smooth. [1] The sign is caused by a lack of the niacin (vitamin B 3). [1] Seborrheic dermatitis may appear similar. [1]
The good news: you probably don't need to panic.