Final answer:
Deficiencies in omega-3 fatty acids EPA and DHA can cause health disorders, and supplementation of these is used in treating disorders like major depression (option 1).
Step-by-step explanation:
Omega-3 Fatty Acids and Health
Research into omega-3 fatty acids, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), has shown potential health benefits such as reducing the risk of heart attacks, lowering blood pressure, and preventing the formation of blood clots. While sometimes being beneficial in the context of cardiovascular diseases and rheumatoid arthritis due to their anti-inflammatory properties, these fatty acids are also crucial for normal growth and brain development in infants. Deficiencies in these omega-3 fatty acids can cause health disorders characterized by deficits of plasma and RBCs omega-3 fatty acids, including EPA and DHA.
Specifically, in responding to the original question regarding which disorder is treated with omega-3 fatty acids, major depression has been associated with deficits of these compounds. Studies have suggested that omega-3 fatty acids may have a beneficial effect on major depression, making it the correct answer from the provided options. Omega-3 supplements replenish the required EPA and DHA in patients with this condition.
Hence, the answer is option 1.