Which of the following is a NOT a symptom of ariboflavinosis?

The symptoms of ariboflavinosis, which is a riboflavin (vitamin B2) deficiency, typically include cracked lips (cheilosis), inflammation of the tongue (glossitis), and seborrheic dermatitis, which manifests as skin issues such as flaky, oily patches usually on the scalp and face.

While weight loss can occur due to a variety of factors related to inadequate nutrition or general health issues, it is not a specific or primary symptom of ariboflavinosis. The other symptoms are more closely related to the specific effects of riboflavin deficiency on the body, hence identifying weight loss as the exception in this context. Understanding the hallmark signs of nutrient deficiencies fosters better recognition and management of those conditions.