optavia | Optimal Weight 5 & 1 Plan

Backed by science, powered by people.

Empowering lifelong 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.

1990s

Science-Backed System

First clinically proven 5 & 1 plan launches — designed by physicians, dieticians 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 every plan and product.

Our clinical study

The research is clear.

We have plans to help meet you where you're at on your journey.

Our 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 triggers a strong and targeted fat burn.

Healthy muscle protection

Powered by our high-quality protein products.1

Targeted fat loss

14% visceral fat reduction.1

Lean mass preservation

98% of lean mass retained during weight loss.1

10x more weight and 17x more fat loss with a coach than those who go it alone.2

*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% adiposity visceral [visceral fat] at 16 weeks.
*Arterburn LM, et al. Those on the Optimal Weight 5 & 1 Plan® with support of an OPTAVIA coach successfully lost 10x more weight and 17x more fat than those who tried to lose weight on their own

Metabolic Synchronization™: The science of resetting metabolic health.

The company introduced Metabolic Synchronization™, a breakthrough science that reverses metabolic dysfunction with a Targeted Reset™2

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

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, 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.

*2019 clinical study where participants who had the support of a coach lost up to 10x more weight than the self-directed group. Based on the results of a 16-week clinical study, those who participated in at least 75% of their 23 assigned OPTAVIA coaching calls lost 15.2 lbs. compared to 6.7 pounds for those participating in fewer calls.

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
  • A proven track record turning data into real-world results.

3+ million lives and counting...

Millions have experienced real, lasting transformation. 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