What action must a Commander take if a medical evaluation finds no underlying condition for an overweight Soldier?

The action a Commander must take when a medical evaluation finds no underlying condition for an overweight Soldier is to initiate separation action, including a bar to reenlistment. This is based on the Army's standards for body composition and fitness, which are crucial for maintaining the readiness and effectiveness of the unit. If a soldier does not meet the height and weight standards and the medical evaluation finds no medical reason for the overweight status, it indicates a failure to comply with the Army’s standards.

This decision is designed to uphold the overall operational capability of the unit, as fitness and body composition standards are integral to soldier effectiveness. The separation action serves as a necessary measure to address repeated non-compliance, particularly after other interventions, such as counseling or the provision of resources to promote weight management, may not have worked.

The other options could provide support or further evaluation, but they do not align with the protocol once it's confirmed that there are no medical grounds for the overweight condition. Initiating separation ensures that the Army maintains a force that is fit for duty and able to perform its missions effectively.