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Longevity 90
A physician-guided, 90-day framework for detoxification, repair, and longevity from Drs. Mark & Michele Sherwood. Not another cleanse. A structured, three-phase program built the way the body actually heals.
The 90-Day Framework for Real Repair
01
Days 1–30
Pre-Tox
Prepare your body's detoxification systems: liver, kidneys, gut, and lymphatics. Most programs skip this step. It's why they fail.
02
Days 31–44
Detox
Mobilize and eliminate what your body has been storing, through activation, conjugation, and elimination, with your systems ready for the load.
03
Days 45–90
Post-Tox
The most important phase: rebuild and restore function so the repair holds. This is where transformation becomes a lifestyle.
What Is Included in Longevity 90
Everything you need to move past information and into implementation.
Authentic Longevity hardcover
The Sherwoods' newest book, shipped to your door.
Digital course
Video teaching that walks you through every phase.
Complete Transformation Kit
Everything your body needs for all three phases.
90-day roadmap
A day-by-day implementation framework. No guesswork.
Pre-Tox, Detox & Post-Tox protocols
Physician-built protocols in the right order.
Anti-inflammatory nutrition guide
What to eat while your body repairs.
Progress tracking tools
See the change as it happens.
Ongoing support
You're never doing this alone.
Beyond Longevity 90
The program includes the Authentic Longevity hardcover, so the principles stay with you long after day 90. And because Longevity 90 comes from the team at Functional Medical Institute, your next step is already mapped: physician-directed peptide therapy, hormone optimization, and root-cause care whenever you're ready to go deeper.
“I've learned you don't wait for a health scare to start taking care of yourself. The best time is while you still have the chance to protect it.”
Kevin Sorbo, Actor & Filmmaker
90 Days to a Better YOU
You already know something needs to change. Longevity 90 is how you move past information and into implementation.