Supercharge 2026—join a
January Group Reset
Kick off 2026 rejuvenated, with renewed energy and focus on your health goals by joining a January Group Reset. When you order a Prolon 5-Day FMD, you'll secure a free spot in these coach-led group fasts, at no extra cost.
Our January Group Reset is here to help you take your health to the next level. Each week of January, we’ll host a group fast led by a Prolon Health Coach and a special guest! We know that fasting with friends makes the Prolon journey more fun and impactful, and we’re here to make it happen. Don’t miss a beat: the new you is only one 5-day commitment away.
Be sure to order your Prolon kit at least 10 business days in advance of your fasting week to ensure timely delivery during the holidays.
Here's our January schedule:

January 4-10: Metabolic health and longevity focus with Kristen Kirkpatrick and Dr. Robert Lufkin
January 11-17: Longevity focus with Cynthia Sass and special guest coming soon
January 18-24: Women’s health focus with Melanie Murphy Richter and Dr. Felice Gersh
January 25-31: Healthy habits focus with Tammi Hall and Michael Chernow

Limited time: Save 15% with code: RESET26

Order Prolon, choose your date, & register.

Already have your kit? Just pick your dates and sign up!

ORDER PROLON
DR. ROBERT LUFKIN & KRISTIN KIRKPATRICK
Sunday, Jan 4 - Saturday, Jan 10
Dr. Lufkin, New York Times Bestselling author ofLies I Told in Medical School, and medical school professor (UCLA/USC), brings a unique and candid perspective to health and longevity. A veteran of the Today Show, USA Today, and a regular contributor to FOX and other network news stations, his weekly video podcast reaches over 400,000 people. With a focus on demystifying wellness and empowering people to take control of their health, his expertise makes him an invaluable guide for the Prolon January Fasting Challenge.

Cleveland-based celebrity dietitian Kristin is a well-known and respected coach, best-selling author, and works at the prestigious Cleveland Clinic. She’s had many TV appearances, including on The Today Show and the Dr. Oz show.

Daily zoom calls at 8am PST
REGISTER NOW
DARIN OLIEN & CYNTHIA SASS
Monday, Jan 11- Sunday, Jan 17
Darin Olien is a renowned wellness expert, nutrition thought leader, and co-host of the hit Netflix series Down to Earth with Zac Efron. Known for his deep commitment to clean living, sustainable nutrition, and longevity, Darin has spent decades uncovering powerful superfoods and advocating for healthier people and a healthier planet.

Cynthia Sass is a three-time New York Times best-selling author and well-known dietitian. She’s been a nutrition consultant for five professional sports teams and has counseled Oscar, Grammy, and Emmy winners. She’s appeared on The Today Show, Good Morning America, The Doctors, and many others.

Daily zoom calls at 10am PST
REGISTER NOW
DR. FELICE GERSH & Melanie Murphy Richter
Sunday, Jan 18 - Saturday, Jan 24
Join Dr. Felice Gersh—board-certified OB/GYN, integrative medical doctor, and globally recognized expert in women’s health—during our January Group Reset. She’ll share insights on how the 5-Day FMD supports hormonal balance, metabolic health, and overall well-being, helping you get the most from your reset.

Melanie Murphy Richter, MS, RDN, is an award-winning dietitian and the Director of Communications at Prolon. An expert in longevity and gut health with a Master’s in Nutrition, Healthspan, and Longevity, she’s a nutrition expert featured in Forbes, Healthline, USA Today, Vogue, and more.

Daily zoom calls at 8am PST
REGISTER NOW
MICHAEL CHERNOW & TAMMI HALL
Sunday, Jan 25 - Saturday, Jan 31
Entrepreneur and health and fitness personality Michael Chernow brings fresh inspiration to our January Group Reset. He’ll share practical insights on building sustainable habits and staying motivated through the 5-Day FMD, helping you get the most from your reset so you can start the year feeling lighter, clearer, and more energized.

Tammi Hall, a National Board–Certified Health and Wellness Coach with a Master’s in Human Nutrition, specializes in disease prevention, metabolic health, and evidence-based lifestyle interventions. In her coaching, she blends science, education, and genuine human connection.

Daily zoom calls at 8am PST
REGISTER NOW

95% of people successfully complete their first Prolon cycle when doing it in a group setting!
Why Join a Coach-Led Fasting Group?
Fasting with a group isn’t just more enjoyable—it’s more effective! With support from your coach and fellow fasters, you’ll stay motivated and encouraged to finish strong and stick with your healthy habits long after the fast.
What to expect during your week
Daily guidance and support

Learn exactly what your body is experiencing during each phase of the fast, with step-by-step guidance and tips.

Daily zoom calls

Participate in coach-led video sessions each day, complete with Q&A to answer your questions. Can’t join live? Recordings are available!

Live chat

Live chat with your coach and fellow fasters throughout the daily zoom call. You'll have all your questiosn answered each day.

Healthy eating tips for after Prolon

Receive advice for transitioning back to regular eating on Day 6 and beyond to maximize your results.

Could fasting together help you both live longer?

Read the latest article on the benefits of fasting with a friend!
READ MORE
4.4
1M+ Happy Healthy Customers

Prolon 5-Day Fasting
Mimicking Diet

Starting at
A patented, science-backed program that keeps your body in a fasting state while allowing you to eat nourishing foods. Over five days, your body is rejuvenated at the cellular level, supporting longevity and unlocking powerful health benefits including:
Fat loss with muscle protection
Cellular rejuvenation
Improved relationship with food
Renewed energy and mental clarity 
A complete body reset
15% Off with code RESET26

A Prolon exclusive

For a limited time receive a free one-month ClassPass trial with 50 credits with your Prolon 5-Day purchase.

What’s inside the box?

The Prolon FMD includes everything you need for your five days of renewal. Just follow the meal guide and eat and drink what’s in each day’s box. The foods in each box are designed to nourish your body while staying below nutrient sensing pathways, so you stay in a fasting state, and get all the benefits of fasting. Learn more about what’s inside each kit below.
HSA/FSA eligible

Pay for your Prolon purchase with qualifying HSA/FSA funds.

Programs like health savings accounts (HSA) and flexible spending accounts (FSA) enable individuals to allocate pre-tax money for qualified healthcare expenses. Prolon has partnered with Sika, allowing customers to use their HSA/FSA funds to purchase our science backed products.

  • Choose pay with Sika at checkout or learn more here.

ADD THE ESSENTIALS:
L-Protein

L-Protein

26g of plant-based protein

$45.00 $50.00
Fasting Bar

Fasting Bar

Nourish your body and fast for longer

$34.99 $39.99
1-Day Reset

1-Day Reset

A complete day of fasting nutrition

$34.99 $39.99