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Skin rash: The most prominent feature is a reddish-purple rash that appears on the lower legs, typically below the knees and above the ankles. The rash is often described as blotchy, mottled, or net-like (reticular in appearance). [6] [7] In some cases, the rash may extend to the dorsum of the feet. [8]
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]
This inflammation can cause pain and stiffness [5] and is one of the most common causes of ankle problems. [ 7 ] In many types of arthritis, progressive joint degeneration in the joint occurs and smooth "buffered" cartilage is gradually lost, causing the bones rub against each other and wear, as well as the soft joint tissue.
Niacin deficiency is a consequence of a diet low in both niacin and the amino acid tryptophan, a precursor for the vitamin. Low plasma tryptophan is a non-specific indicator, meaning it can have other causes. The signs and symptoms of niacin deficiency start to revert within days of oral supplementation with large amounts of the vitamin. [23] [24]
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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.
Burning feet syndrome, also known as Grierson-Gopalan syndrome, is a medical condition that causes severe burning and aching of the feet, hyperesthesia, and vasomotor changes of the feet that lead to excessive sweating. It can even affect the eyes, causing scotoma and amblyopia. The condition occurs more frequently in women, and usually ...
Winter brings less daylight and colder temperatures, which can disrupt sleep. Seasonal Affective Disorder (SAD) is more common in winter due to the lack of sunlight, causing sleep disturbances.