Complex sentence: Another study in 2000 reported adverse effects (upper-respiratory tract, urinary, and musculoskeletal) in roughly a third of the participants who took the products for 7 days; these events resolved spontaneously and were deemed unlikely to have derived from use of Juice Plus.
Split into simpler sentences: Another study in 2000 reported adverse effects (upper-respiratory tract, urinary, and musculoskeletal) in roughly a third of the participants who took the products for 7 days. These events resolved spontaneously and were deemed unlikely to have derived from use of Juice Plus.