Virta Health
Introducing a new AI coach named Viv
I designed and built this version of Viv with the help of AI 🤖
It was critical to test a working prototype, not just static mockups, as the success of the design depends on the conversations that members have with Viv.

Virta Health

Creating an AI Health Coach with Clinical Expertise and Empathy

At Virta Health, a pioneer in type 2 diabetes reversal, I led the development of Viv, an AI-powered health coach. This groundbreaking project aimed to provide 24/7 personalized support to help members adapt to and maintain the Virta protocol. By combining clinical knowledge with empathetic coaching, Viv has become an invaluable companion in our members' health journeys.

Strategic Innovation through AI

Challenge Addressed: We identified that members needed more frequent, personalized support during their first weeks on the protocol. Traditional coaching methods, while effective, couldn't provide the round-the-clock guidance some members needed. Our objective was to create an AI coach that could complement our human coaches while maintaining Virta's high clinical standards.

AI-Powered Solution: Using rapid prototyping and iterative testing, I developed Viv from concept to production. The process involved:

Outcome: Viv has become a trusted companion for our members, providing instant, clinically-sound guidance while maintaining the warmth and understanding that characterizes Virta's approach to care. Member feedback has been overwhelmingly positive, with many reporting that Viv helped them stay on track during challenging moments in their health journey.

Viv Architecture: Early Wireframes

Before diving into high-fidelity designs, I studied existing user flows and food logging features to create a comprehensive low-fidelity architecture and prototype. These grayscale wireframes helped facilitate early discussions around technical constraints, gather stakeholder feedback, and conduct initial usability testing with static mockups.

Text interaction flow
Design Notes
Main wireframe view
Main View
Chat interface wireframe
Chat Interface
Food checking interface
Food Check Interface
Home screen layout
Home Screen
Meal planning interface
Meal Planning

Integrating Viv into the Coaching Workflow

Augmenting Human Care

Viv was carefully designed to complement rather than replace Virta's human coaches. By handling routine requests about food choices and device troubleshooting with immediate, accurate responses, Viv frees up our coaches to focus on deeper emotional support and meaningful interventions. This partnership between AI and human coaches has led to more powerful care team moments and stronger relationships with members.

Design vision presentation
Coach-AI Integration Model
Empowering the Care Team

The integration of Viv has transformed how our coaches work, allowing them to spend less time on repetitive queries and more time on meaningful coaching conversations. When members need immediate guidance about food choices or technical support, Viv provides instant, clinically-sound answers. This leaves coaches free to focus on building trust, providing emotional support, and helping members navigate their deeper health journey.

Member Testing & Refinement

As the sole UX researcher, I established our testing process from the ground up. After running a successful proof of concept study on UserTesting.com, I advocated for and secured leadership buy-in to formally adopt the platform. This enabled us to validate our AI vision early and often, while also providing an opportunity to mentor junior designers in usability testing methods.

"I really like using an AI assistant in here. Yep... excellent."

— UserTesting participant

"I never knew that before. Thanks Viv!"

— Virta member, during beta testing

Several usertesting participants even thanked us for teaching them something during their session.

Proactive Viv

Technical Development

Creating Viv's intelligence required careful curation of Virta's clinical knowledge combined with coaching best practices. The process involved:

  • Training an LLM on Virta's treatment protocols and clinical guidelines
  • Implementing guardrails to ensure medically accurate responses
  • Developing conversation flows for common member scenarios
After food tool use 1
After Food Tool Use 1
After food tool use 2
After Food Tool Use 2
After food tool use
After Food Tool Use 3
Celebratory
Celebratory
Celebratory 2
Celebratory 2
Celebratory 3
Celebratory 3
Check-in
Check-in
Logging 2
Logging
Logging 3
Logging Home
Mood
Mood
Simple Start 2
Simple Start
Video 2
Video Companion
High-Fidelity Designs

Integrating Viv into the Application

Through testing, member feedback, and iteration, I identified key moments in the member journey where Viv could strategically enhance the experience. These integration points were carefully chosen to complement existing features while providing additional support:

  • Contextual food guidance when members are logging meals
  • Celebration moments to acknowledge progress and milestones
  • Video companion support during educational content
  • Community engagement to answer common protocol questions
  • Proactive check-ins during key habit formation periods
Viv celebration
Celebration Moments
Viv habit tracking
Habit Tracking
Viv food logging
Food Logging Assistant
Viv with articles
Article Integration
Viv in community
Community Support
Viv as analyst
Analysis View
Viv with video
Video Companion
The Final Product

Viv in action

Impact

Viv has become an integral part of the Virta experience:

  • 50% of members engage with Viv in their first week
  • Increased dietary start date set within first 30 days of the program
  • Reduced response time for common member questions from hours to seconds
  • Consistently high satisfaction ratings from members