Original sentence: Copper deficiency, some writers  have identified a theoretical risk of poor copper absorption from high doses of Vitamin C although little experimental evidence supports this.However, ceruloplasmin levels seem specifically lowered by high vitamin C intake.In another, ceruloplasmin levels were significantly reduced.In one study, 600 milligrams of Vitamin C daily did not decrease copper absorption or overall body copper status in young men, but led to lower ceruloplasmin levels similar to those caused by copper deficiency
Edited sentence: Copper deficiency, some writers  have identified a theoretical risk of poor copper absorption from high doses of Vitamin C although no experimental evidence supports this.Indeed, 600 milligrams of Vitamin C daily did not decrease copper absorption or overall body copper status in young men