Which condition could indicate a potential riboflavin deficiency?

Riboflavin, also known as vitamin B2, is essential for various bodily functions, including energy production and the metabolism of fats, drugs, and steroids. It plays a crucial role in maintaining healthy skin, eyes, and nerve functions. A deficiency in riboflavin can lead to several symptoms, with chapped lips being a notable indicator.

Chapped lips, or cheilosis, can occur due to a lack of riboflavin because it affects the health of the mucous membranes, leading to cracks or sores at the corners of the mouth. This condition is commonly associated with riboflavin deficiency, as the vitamin is important for maintaining the integrity of tissues and mucous membranes.

While nausea, hair loss, and excessive salivation can be associated with various deficiencies or health conditions, they are not specifically linked to riboflavin deficiency in the same direct way that chapped lips are. Thus, the presence of chapped lips serves as a more identifiable marker for riboflavin deficiency compared to the other listed options.