What symptom may accompany essential fatty-acid deficiency?

Essential fatty acid (EFA) deficiency is often characterized by several physiological symptoms related to the body’s lack of omega-3 and omega-6 fatty acids. One notable symptom is dullness of hair. This occurs because EFAs play a critical role in maintaining the health of the hair follicles and overall hair structure.

When the body is deprived of essential fatty acids, the hair can become dry, brittle, and lack luster, leading to a dull appearance. Essential fatty acids are crucial for maintaining healthy lipid barriers in the skin and scalp, which directly affects hair health. Therefore, a deficiency can result in poor hair quality as a symptom, manifesting prominently as dullness.

The other options, such as peripheral neuropathy, weight gain, and skin flushing, do not directly result from a deficiency in essential fatty acids. Peripheral neuropathy is more commonly associated with vitamin deficiencies, such as B vitamins and niacin. Weight gain is typically influenced by factors related to overall caloric intake rather than specific EFA deficiency. Skin flushing is associated with other conditions or dietary factors, such as niacin or certain food intolerances, rather than a lack of essential fatty acids.