Tart Cherry Juice vs. Black Cherry Juice: Benefits and Risks to ... Mar 16, 2022 · Even further, runners who had 11 to 12 ounces of tart cherry juice twice daily for seven days prior to a long-distance relay and during the race reported significantly less pain following the run than those who consumed a placebo, per a May 2010 study in the Journal of the International Society of Sports Nutrition . The researchers conclude that tart cherry juice is an …