optavia | Optimal Weight 5 & 1 Plan

Backed by science, powered by people.

Empowering metabolic health together.

Grounded in decades of clinical science.

40+ years of expertise.

1980s

Clinical Roots

Physicians pioneer a proprietary structured nutrition program to address obesity in clinical settings.

2000s

Science-Backed System

First clinically proven 5 & 1 plan launches — designed by physicians, dietitians and scientists to make weight loss simple and evidence-based.

2010s

Coaching + Habits

Behavioral science comes to life with 1:1 coaching and a framework for building healthy habits that last.

Today

Evidence in Action

40+ years of research — and more than 3 million lives impacted — shapes our clinically proven plans and scientifically developed products.

Our clinical study

The research is clear.

We have nutrition meal plans to help meet you where you’re at on your journey.

Our Targeted Reset 5 & 1 Plan® is clinically proven to deliver quality weight loss that helps improve metabolic health. It works by shifting your body composition through a science-backed nutrition plan that supports strong and targeted fat burn.*

Strong and targeted (bad) fat loss

visceral fat reduction.*

Lean mass preservation

98% of lean mass retained during weight loss.*

Healthy muscle protection

Powered by our high-quality protein products, nutrient-dense meals and Habit of Healthy Motion.*

10x more weight and 17x more fat loss with a coach than those who go it alone.**

*In a clinical study, 98% of lean mass was retained on the Optimal Weight 5 & 1 Plan® at 16 weeks. In a clinical study, individuals on the OPTAVIA 5 & 1 Plan experienced a reduction of 14% visceral adiposity [visceral fat] at 16 weeks.

*Arterburn LM, Coleman CD, Kiel J, et al. Randomized controlled trial assessing two commercial weight loss programs in adults with overweight or obesity. Obes Sci Pract. Feb 2019;5(1):3-14. doi:10.1002/osp4.312

**In a clinical study, the group on the Optimal Weight 5 & 1 Plan® successfully lost 10x more weight and 17x more fat than the self-directed control group. Arterburn LM, Coleman CD, Kiel J, et al. Randomized controlled trial assessing two commercial weight loss programs in adults with overweight or obesity. Obes Sci Pract. Feb 2019;5(1):3-14. doi:10.1002/osp4.312

Metabolic Synchronization™: The science of resetting metabolic health.

Introducing Metabolic Synchronization™, a breakthrough science that reverses metabolic dysfunction with a Targeted Reset™*

*In a clinical study, individuals on the Optimal Weight 5 & 1 Plan® experienced a reduction of 14% visceral fat and 98% of lean mass was retained at 16 weeks. | Arterburn LM, Coleman CD, Kiel J, et al. Randomized controlled trial assessing two commercial weight loss programs in adults with overweight or obesity. Obes Sci Pract. Feb 2019;5(1):3-14. doi:10.1002/osp4.312

A comprehensive metabolic health system.

Designed for results that go beyond the scale.

One of our goals is to help you preserve lean muscle and promote healthy fat metabolism. Our structured nutrition plans and products work collectively to deliver the right balance of protein, carbs, fat, vitamins and minerals your body needs.

In a world of automation and AI, human connection is our superpower. About 90% of coaches were clients first so they've walked in your shoes. Now, they step in as your co-pilot.

85% of people who diet without lifestyle change regain the weight within two years.* Why? Because habits drive half of what you do every day. Our evidence-based approach to behavioral lifestyle change builds micro habits — small, practical steps in nutrition, hydration, movement, sleep and mindset.

*Coleman, C., Kiel, J., LaCalamita, C., Frye, N. and Provelengios, L. (2022) Healthy Habits Associated with Successful Weight Loss Maintenance on a Commercial Program: Learnings from a Research Survey. Food and Nutrition Sciences, 13, 453-462.

Our experts: the brains behind the breakthroughs.

Our Scientific Advisory Board, alongside our Scientific & Clinical Affairs and Research & Development teams, brings together experts in medicine, nutrition and behavior change.

Trusted research. Tangible results.

Decades of work from physicians, scientists and dietitians who’ve logged the hours in clinics and labs, not just on paper. They’ve put their names on the research and have the numbers to back it up.

  • 40+ years of scientific & clinical heritage
  • 30+ peer-reviewed scientific journal publications
  • 70+ peer-reviewed presentations & publications
  • 30+ scientific research studies & analyses

3+ million lives and counting...

Millions of lives have been impacted through OPTAVIA. At the center of it all? Science. Not just in labs. Not just in journals. But in every choice, every habit, every coaching conversation and every breakthrough along the way.

See Our Full Clinical Study