The Fast360 Metabolic Diet

A Revolutionary Approach to Health and Longevity

Fasting is one of the most powerful tools we have for improving metabolism, lowering inflammation, and enhancing longevity—but most people find it confusing, restrictive, or unsustainable.

That’s why I created the Fast360 Metabolic Diet, a 5-day evidence-based nutrition plan, where you still get to eat (and chew), but the macronutrients mimic a fast. So you get all the benefits of fasting while still nourishing your body and mind.

AND yes...it's ONLY 5 days!

This innovative 5-day diet merged with mindset work is expertly crafted to provide a precise balance of micro- and macro-nutrients that mimic the effects of fasting, all while nourishing your body and mind. You'll receive transformative health benefits in just five days — benefits that continue even if you return to a standard American diet. If you have been plateauing and need a kickstart, this is for you.

In just five days, the Fast360 Metabolic Diet can help you:

  • Reset your metabolism — support fat loss, improve insulin sensitivity, and regulate glucose.

  • Reduce inflammation — ease symptoms, lower CRP, and improve recovery.

  • Boost brain and body vitality — enhance memory, mental clarity, and energy.

  • Support longevity — positively influence biomarkers of aging (IGF-1, stem cell regeneration, visceral fat reduction).

  • Promote whole-body wellness — improve digestion, strengthen immunity, and support cardiovascular health.

TOP BENEFITS INCLUDE:

Weight Loss and Body Fat Reduction:
Fasting can lead to a reduction in body weight and body fat as the body uses fat as its primary source of energy in the absence of glucose from food.

Improved Metabolic Health:

Fasting can enhance metabolic efficiency, increasing the body's ability to process and use food for energy more effectively. It can improve insulin sensitivity, reduce blood sugar levels, and help manage or prevent type 2 diabetes.

Enhanced Brain Function:

Fasting is believed to boost brain function and could help in the prevention of neurodegenerative diseases. It may increase the production of brain-derived neurotrophic factor (BDNF), a protein that supports brain health.

Increased Longevity:

Some studies suggest that fasting can lead to a longer lifespan by delaying the onset of age-related diseases.

Improved Heart Health:

Fasting may improve various risk factors for heart disease, including blood pressure, cholesterol levels, triglycerides, and inflammatory markers.

Reduction in Inflammation:

Fasting can decrease inflammation, a root cause of many chronic conditions and diseases.

Enhanced Cellular Repair:

Fasting triggers cellular repair processes, such as removing waste material from cells, which is beneficial for maintaining cellular health.

Hormone Regulation:

Fasting can normalize levels of certain hormones, including those involved in metabolism and stress response.

Increased Growth Hormone Secretion:

Fasting can increase the levels of human growth hormone (HGH), which has benefits for fat loss and muscle gain.

Detoxification:

Although the body is equipped with its own natural detoxification system, fasting is thought to enhance this process by giving the organs a break from digesting food and dealing with toxins.

Improved Digestive Health:

By giving the digestive system a rest, fasting can help maintain the health of the digestive tract and improve various digestive symptoms.

Enhanced Immune System:

Fasting can regenerate immune cells, which may lead to improved immune function.

Weight and Body Fat Reduction:

Jumpstart your metabolism and shed excess weight, achieving a leaner physique.

Stem Cell Regeneration:

Boost your body's natural ability to heal and regenerate, enhancing overall vitality.

Glucose Regulation:

Stabilize blood sugar levels and maintain a healthy glucose balance.

Reduced Inflammation:

Decrease inflammation markers like C-Reactive Protein (CRP), contributing to overall health.

Triglyceride Control:

Keep triglyceride levels in check, supporting cardiovascular health.

Blood Pressure Management:

Effectively regulate blood pressure, promoting heart health.

Bone Density:

Strengthen bone health and density, crucial for a robust, active life.

Aging Biomarker Impact:

Positively influence IGF-1 levels, a key biomarker of aging, and slow down the aging process.

Insulin Sensitivity:

Enhance your body’s insulin response, improving metabolic health.

Cholesterol Management:

Maintain healthy cholesterol levels, crucial for heart health.

Visceral Fat Reduction:

Target and reduce harmful visceral fat that can surround organs and lead to health issues.

You DeserveTo Feel Your Best!

Want to try it for yourself?


The full plan, science, and step-by-step guide are available in my book:

Program Structure

The Fast360 Metabolic Diet is a 7-day system:

Prep Phase 1-day: Get your body ready.

5-day diet protocol: Follow a precise nutrient design that activates cellular repair while maintaining energy.

Transition Phase 1-day: Ease back into balanced eating with clarity and confidence.

Created by Kerri Rachelle, Doctor of Integrative & Functional Medicine and Registered Dietitian, Fast360 brings together nearly two decades of clinical experience to make the science of fasting safe, approachable, and effective for everyday life.

Kerri Rachelle is a Doctor of Integrative & Functional Medicine candidate, Registered Dietitian Nutritionist, Functional Medicine Practitioner, Certified Specialist in Sports Dietetics, and RYT500 Yoga Teacher.

With nearly two decades of experience in clinical practice, teaching, and mentorship, she has guided thousands of patients and trained hundreds of health professionals in root-cause care.

She is the founder of REVolution Health, a nationwide functional medicine practice that accepts insurance, and REV0lution Cycle Studio, a boutique fitness space rooted in the belief that movement is medicine.

Kerri also mentors dietitians and health professionals through her Rooted Functional Medicine Training and Fellowship programs, equipping them with the frameworks and confidence to practice differently.

Alongside her professional work, Kerri is a devoted mom and entrepreneur whose mission is to make functional medicine accessible, evidence-based, and truly transformative. Through her writing, podcast, and programs, she helps both patients and practitioners see beyond symptoms to the systems and solutions that create lasting health.