“The “wolfberry” here is actually the Chinese medicine “wolfberry”.
The nutritional value of wolfberry is relatively rich, containing a variety of amino acids, “long serving firm tendons and bones, light body does not grow old, cold and summer”. It is also known for its bright eyes and tranquillity, which is why it is said that “eating wolfberries protects the eyes”.
The lutein contained in wolfberry does have a protective effect on the macula, but has no real effect on eye diseases other than macular degeneration, and the amount of lutein contained in wolfberry is not enough to meet the needs of patients with eye diseases, so its effect is very limited. Similarly, carrots, broccoli, sweet potatoes, blueberries, etc., do not have a significant effect on eye protection and eye clarity.”