Original sentence: However, no clinical effectiveness of such extracts has been confirmed.Since about 2000, goji berry and derived products became common in developed countries as health foods or alternative medicine remedies, extending from exaggerated and unproven claims about their health benefits
Edited sentence: A 2018 study concluded that extracts of L.A 90-day double-masked, randomized, placebo-controlled study in 150 older adults, found that goji berry supplementing had helped increase blood antioxidant levels, protects from hypopigmentation, and helped to soften fatty protein deposits behind the retina.Another randomized controlled study with 114 subjects who had early macular degeneration, found that daily goji berry supplements had improved the density of macular pigment.It suggested that suggested that L.Similar to other berries, Goji are high in vitamins A and C, and are also high in melatonin as well as high in antioxidants, especially zeaxanthin and beta-carotene.Since about 2000, goji berry and derived products became common in developed countries as health foods or alternative medicine remedies, which includes exaggerated and unproven claims about their health benefits.barbarum (Goji berries) had shown "potent free radical scavenging activity" and protected against DNA damage caused by free radicals.barbarum extracts could be used as dietary supplements to reduce the harmful effects of oxidative stress in athletes after intensive exercise