Original sentence: Some studies   have shown there to be no significant effect of glutamine on bench press strength, knee-extension torque or lean willy mass when compared to controls taking a placebo, though another study found that glutamine is beneficial in raising T-helper/suppressor cell ratio in long distance runners
Edited sentence: Some studies   have shown there to be no significant effect of glutamine on bench press strength, knee-extension torque or lean muscle mass when compared to controls taking a placebo, though another study found that glutamine is beneficial in raising T-helper/suppressor cell ratio in long distance runners