The present study evaluated the effectiveness of the integrative, yoga-based, "Eat Breathe Thrive"™ (EBT) program as a selective eating disorder prevention intervention with female Division I student-athletes, a group identified in the prevalence literature at high-risk for eating disorders. The EBT program curriculum was adapted for this study to be delivered through a 7-week undergraduate course. The program was evaluated by examining for change over time in outcome variables associated with eating disorder risk and competencies of positive embodiment in a sample of 94 female Division I student-athletes (with 48 of the study's participants receiving the EBT prevention intervention and 46 recruited as matched controls) from one National Collegiate Athletic Association (NCAA) Division I-classified university. Factors associated with eating disorder risk were measured using: (1) the Eating Disorder Examination Questionnaire (EDE-Q; Fairburn & Beglin, 1994), (2) the State-Trait Anxiety Inventory for Adults (STAI Form Y-1 and Form Y-2; Spielberger, 1977), and (3) the Difficulties in Emotional Regulation Scale (DERS, Gratz & Roemer, 2004). Competencies of positive embodiment were measured using: (1) the Multidimensional Assessment of Interoceptive Awareness (MAIA; Mehling, Price, Daubenmier, Acree, Bartmess, & Stewart, 2012), (2) the Mindful Self-Care Scale- SHORT (MSCS-S; Cook-Cottone & Guyker, 2016), (3) the Distress Tolerance Scale (DTS, Simmons & Gaher, 2005), (4) the Intuitive Eating Scale-2 (IES-2; Tylka & Kroon, 2013), and (5) the Integrity Scale- Truth and Honesty Questions (Cook-Cottone, 2017). Targeted self-regulation skills were measured using the MAIA "Body Listening" and "Self-Regulation" subscales (Mehling et al., 2012). All participants completed the measures through online surveys at three timepoints (i.e., pre-test at baseline [Time 1], 7-week post-test [Time 2], and 3-month follow-up-test [Time 3]). Repeated measures ANOVAS showed, that relative to control participants, EBT participants experienced significantly less state anxiety (i.e., situational anxiety) over time. EBT participants also experienced significantly greater interoceptive trusting (i.e., experiencing one's body as safe and trustworthy) over time relative to controls. Compared to EBT participants, control participants experienced a significant reduction in distress appraisal (i.e., acceptance of experiencing difficult emotions as a part of life) over time. EBT participants were observed to experience an increase in distress appraisal over time but the increase did not reach statistical significance. No significant interaction effects were observed between the EBT intervention and control groups in disordered eating behaviors, trait anxiety, difficulties in emotional regulation, other dimensions of interoceptive awareness, intuitive eating, other aspects of distress tolerance, or areas of mindful self-care. However, follow-up with at-risk students' analyses revealed that among the participants indicating the presence of disordered eating behaviors at baseline, those within the EBT group reported significantly less shape concern and weight concern after receiving the EBT program curriculum. Paired samples t-tests showed that EBT participants reported significantly increased use of the self-regulation skills targeted in EBT program curriculum at post-test. Further, findings revealed that EBT participants' significant increase in targeted self-regulations skills were maintained at 3-month follow-up. EBT participants rated the program favorably. The results of this study provide preliminary support for the effectiveness, feasibility, and acceptability of selecting EBT, an integrated yoga-based eating disorder prevention intervention for its use with female Division I student-athletes. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]