From Drs. Mark & Michele Sherwood
Longevity 90
A 90-day reset in three phases: prepare the body, clear what it has stored, then rebuild so it holds. One kit arrives with everything you need.
- ✓ Everything included, nothing sold separately
- ✓ A day-by-day plan for all 90 days
- ✓ Built from how the Sherwoods treat patients

Choose your plan
- ✓ Ships free, everything in one box
- ✓ Renews every 90 days at the lower kit price until you cancel
- ✓ Questions answered by the clinic, not a call center
How the 90 days run
Three phases, in this order, for a reason.
Days 1 to 30
Phase 1: Pre-Tox
Get the organs that do the clearing ready: liver, kidneys, gut and lymphatics.
Mobilizing toxins before the exit routes are open is what makes people feel awful on a cleanse. This phase is the reason most programs fail and this one does not.
Days 31 to 44
Phase 2: Detox
Mobilize and eliminate what the body has been storing.
Two weeks of actual clearing, run only after your pathways are prepared, so what comes out keeps going out.
Days 45 to 90
Phase 3: Post-Tox
Rebuild and restore function so the change holds.
The longest phase on purpose. Clearing without rebuilding is a short-lived result; this is where it turns into how you live.

Who built this
Drs. Mark & Michele Sherwood
Dr. Michele is an osteopathic physician and the prescribing doctor. Dr. Mark is a naturopathic doctor, a former Major League Baseball player and a 23-year veteran of the Tulsa Police Department, ten of those on SWAT. Together they have run Functional Medical Institute for more than eighteen years and have cared for over 25,000 patients.
They are seven-time bestselling authors who teach other practitioners around the world. Longevity 90 is the protocol they use with their own patients, packaged so you can run it at home.
18+
years in practice
25,000+
patients served
3
phases, 90 days

Day 1 is the hard one
You do not have to overhaul your life. You follow the plan for the day, and the kit already has what that day needs.

You will know it is working
Energy, sleep and digestion move first. Bring your labs to the clinic afterwards and the numbers tell the rest.
What is in the box
Every item below is included. Bought separately these come to $1,732.55.

Authentic Longevity (hardcover)
1 book$20 valueThe Sherwoods' book on the eleven facets of a longer, fuller life: physical health, movement, mental clarity, sleep, emotional balance, stress, spiritual wellness, relationships, nutrition, purpose, and the clinical edge of peptides and genetics. Each one explained, each one measurable. Most health books stop at diet and exercise; this one goes after the root causes of aging and lost energy and hands you a framework you can run in your own life. Ships once, it is yours to keep.

Authentic Longevity course (digital)
1 courseVideo teaching that walks through each phase week by week, so you always know what you are doing and why it comes in that order. Watch on any device, at your pace, for as long as you are with us. Nothing to ship and nothing to re-buy.

Kingdom Essential Packs
3 canisters$305.97 valueYour daily nutritional floor for all 90 days, in one grab-and-go pack: no pill sorting, no row of bottles. Each pack carries Vitamin D (5,000 IU), Vitamin K1 and K2 (265mcg), Omega-3 fatty acids (1,140mg, with at least 570mg EPA and 430mg DHA), CoQ10 (50mg), Zinc (10mg) and Magnesium (50mg), alongside the rest of the foundational vitamins and minerals the doctors want every patient on. 60 packs per canister, gluten and dairy free. Three canisters cover the full program.

Kingdom Detox Kit
1 kit$189.99 valueThe phase 2 workhorse: a complete 14-day nutrition reset. Two canisters of Kingdom Fuel (14 servings each) give you two shakes a day at 20g of clean plant-based protein, 9g of fiber and zero sugar per serving, with healthy fats from MCTs and avocado oil. One canister of Kingdom Detox Packs (28 packs) adds a daily botanical blend with antioxidants and micronutrients, formulated by Dr. Mark and Dr. Michele. Chocolate, vanilla, or one of each.

Kingdom Ketones
2 containers$162.74 valueExogenous ketones, classed as a medical food, used across the reset to hold energy steady while your food intake changes. This is the piece that keeps the detox phase liveable: most people quit a cleanse because they feel flat by day three, and ketones give the brain and muscles a fuel source while the body is doing its work. Two containers, enough to carry you through the phases where you need them.

Kingdom Molecular Hydrogen Bottle
1 bottle$235 valueA rechargeable bottle that makes hydrogen-rich water on demand, in about three minutes, from ordinary water. Molecular hydrogen is studied for its antioxidant properties: it is small enough to reach places larger antioxidants cannot, and research has looked at its role in neutralizing free radicals, calming inflammation and supporting recovery and athletic performance. Yours to keep, which is why your renewal kits cost less.

BioCode Bioregulators
2 per month$818.85 valueBioCode bioregulators, the longevity stack, formulated by the doctors and taken monthly across all three months. Bioregulators are short peptide chains studied for their role in signalling tissue to function the way it did when it was younger, and they are the piece of this kit you are least likely to have seen anywhere else. This is the single most valuable item in the box.
What arrives after the first 90 days
Your next kit ships on day 90 and every 90 days after that, at $697 in full or $249 a month. It costs less because the pieces you keep do not repeat: the hydrogen bottle, the hardcover and the course ship once. You are re-supplied on the daily packs, the detox kit, the ketones and the bioregulators. Cancel any time from your account.
Why this one works
Order matters
Prepare, then clear, then rebuild. Doing those in the wrong order is why cleanses backfire.
One kit, no shopping list
Everything for all three phases ships together. Nothing to source, nothing sold separately.
Built in a working clinic
Drawn from what Drs. Mark and Michele Sherwood do with patients every day at Functional Medical Institute.
A day-by-day plan
You are told what to take and what to eat each day, so the program does not depend on willpower or guesswork.
Questions
Who is this for?
Adults who want a structured reset rather than another cleanse, and who will follow a plan for 90 days. If you are pregnant, nursing, or managing a medical condition, review it with your physician first.
What arrives, and when?
One box with everything listed above, shipped to your door after checkout. The course and roadmap are delivered digitally so you can start while the box is on its way.
Do I have to be an FMI patient?
No. Anyone can run Longevity 90. If you want to go deeper afterward, our team offers lab work, hormone optimization and peptide therapy.
Can I take it with my medications?
Bring the ingredient lists to your prescriber and confirm. We do not adjust medications through this program.
Start your 90 days
One kit, one plan, ninety days. $350 a month for three months, or $997 in full, shipped free to your door and renewed every 90 days at the lower kit price.
These statements have not been evaluated by the Food and Drug Administration. This program is not intended to diagnose, treat, cure or prevent any disease. Talk with your physician before starting any new supplement, especially if you are pregnant, nursing or taking prescription medication.