Approximately 500,000 US men are living with biochemical recurrent prostate cancer (BCR). Therapies are needed to delay the appearance of metastatic disease and need for androgen deprivation therapy (ADT), which has significant adverse side effects. Observational evidence suggests that weight loss may slow the rate of disease progression. The EMPOWER trial will use an enhanced version of a remote weight loss intervention shown to yield clinically significant weight loss to test whether weight loss reduces prostate cancer progression at 12 months. EMPOWER has the potential to provide men with BCR a "first line therapy" to slow disease progression and delay the need for ADT. Importantly, this "treatment" is without significant side effects, and can improve overall health.