Meet Dr. MacDonald

A physician who has been deployed in combat zones, a small business owner, and a former healthcare executive, Dr. MacDonald knows what it's like to manage high-stakes operations under unpredictable conditions. He's spent decades in primary care and hospital medicine treating men whose A1C numbers were creeping toward diabetes—and watching most of them fail with generic advice. The A1C Reboot™ is the system he built for men who operate as he does: data-driven, schedule-constrained, and allergic to bullshit.

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