Prevent vision loss - According to a study published in the 2005 issue of the British Journal of Nutrition, goji berries contain properties that prevent the risk of vision loss. Researchers at Hong Kong Polytechnic University fed 14 healthy volunteers a serving of 15 grams of goji berries daily for 28 days while comparing their blood levels to 13 control volunteers. After 28 days, the volunteers who consumed the fruits experienced significantly raised zeaxanthin levels in the blood (zeaxanthin is an antioxidant present in goji berries that helps preserve eyesight). Therefore, if you're suffering from poor or deteriorating eyesight, consider adding more goji berries to your diet.
Improve male fertility - Goji berries have long been considered a male aphrodisiac in China, and more studies are starting to confirm these allegations. According to a Chinese study published in the July 2006 issue of Life Sciences, for example, rats that were fed goji berries maintained testicular function when subjected to heat. The researchers also found that certain constituents in goji berries regulated the release of sexual hormones, boosted hormone levels and improved the quality and quantity of sperm in male rats
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