When to take What
When to Take What is your AI-powered health companion: personalized plans, expert-backed advice, and trusted products verified for you.
What do we do?
We are building a holistic health solution for people who are technically “healthy” – but don’t feel well.
We focus on the large and overlooked group living in a liminal health state:
not sick enough to be treated, but not healthy enough to thrive.
Instead of chasing quick fixes, WTTW helps people understand how sleep, nutrition, habits, timing, and personal context interact over time, and turns that complexity into clarity.
Most health decisions fail not because people don’t care –
but because guidance is fragmented, generic, and disconnected from real life.
Most health decisions fail not because people don’t care –
but because guidance is fragmented, generic, and disconnected from real life.
How it works.
Tell us your goals
Share your health goals, what you’re taking, any conditions, even blood work if you have it. An AI companion turns it all into a dynamic profile that evolves with you.
Your adaptive plan
You get a supplement and lifestyle plan tailored to your body, habits, and goals. As your profile evolves with you, your tailored plan also adapts as new data comes in, so it always stays relevant and effective.
Track, improve, repeat
From daily reminders and progress visualizations to expert nudges and community streaks, WttW keeps you motivated. You see what’s working, adjust where needed, and build habits that truly last.
How it works.
Tell us your goals
Share your health goals, what you’re taking, any conditions, even blood work if you have it. An AI companion turns it all into a dynamic profile that evolves with you.
Your adaptive plan
You get a supplement and lifestyle plan tailored to your body, habits, and goals. As your profile evolves with you, your tailored plan also adapts as new data comes in, so it always stays relevant and effective.
Track, improve, repeat
From daily reminders and progress visualizations to expert nudges and community streaks, WttW keeps you motivated. You see what’s working, adjust where needed, and build habits that truly last.
Why When to Take What?
When it comes to health decicions and supplements, most people rely on marketing or guesswork. WttW cuts through the noise by combining AI insights, scientific studies, and expert guidance – to give you personalized recommendations you can actually trust.
That’s normal! Building new habits is tough. That’s why our AI assistant Edgar keeps you engaged with smart nudges, streaks, and progress visualizations. WttW matches what you need with what motivates you, so healthy routines actually stick.
There’s a lot out there, and not all of it’s clear or credible. That’s why WttW only recommends products that pass our Trusted & Verified process: no fillers, full ingredient transparency, independent lab tests, and recognized certifications. You deserve to know what you’re taking, and trust that it works.
There’s a sea of health apps out there, but WttW is built by a team of digital health UX designers, AI specialists, medical advisors, and trusted partners in health and lifestyle. Our approach blends cutting-edge technology with human insight for maximum impact. What you get is grounded, personal, and actually useful.
Watch how we build the future of health.
@whentotakewhat
Our features do more than just tracking.
A personal health twin that learns with you.
Edgar, your AI health assistant
Not a one-size-fits-all chatbot, but a trained AI specialist. Edgar understands your patterns, nudges you at the right moments, and evolves with you so healthy routines can truly take hold. And it’s not just AI: if you want, connect with others who share your goals or see how you’re progressing within your community.
Adaptive Health Plans
No generic advice: our AI designs supplement and lifestyle routines that evolve as your needs, data, and goals change.
Habit support that works with you
Streaks, progress insights, and timely nudges, designed to keep you going, not wear you out. Not through pressure, but through understanding what works best for you.
Clarity you can trust
Evidence-based insights, explained clearly, so you understand what you’re taking, why it matters, and what’s right for your body.
Experts When You Need Them
Access to doctors and nutritionists, real people to guide you when you need it, not just when things go wrong.
Only the good stuff
Smart reminders when you’re running low. Easy access to supplements we’ve verified – nothing extra, nothing shady.
Our features do more than just tracking.
A personal health twin that learns with you.
Edgar, your AI health assistant
No one-size-fits-all chatbot, but a trained AI specialist. Edgar understands your patterns, nudges you at the right moments, and grows with you to help healthy routines take root.
Adaptive Supplement Plans
No generic advice: our AI designs supplement and lifestyle routines that evolve as your needs, data, and goals change.
Habit support that works with you
Streaks, progress insights, and timely nudges, designed to keep you going, not wear you out. Not through pressure, but through understanding what works best for you.
Clarity you can trust
Evidence-based insights, explained clearly, so you understand what you’re taking, why it matters, and what’s right for your body.
Experts When You Need Them
Access to doctors and nutritionists, real people to guide you when you need it, not just when things go wrong.
Only the good stuff
Smart reminders when you’re running low. Easy access to supplements we’ve verified – nothing extra, nothing shady.
Expertise meets innovation.
We are an experienced team deeply rooted in UX design with a proven track record in the medical field. Together with leading AI specialists and trusted partners from the health and lifestyle sectors, we’re building a platform that blends science, technology, and human insight.
Sarah Blömer
Founder + CEO
UX-Engineering, Strategy and Sales, specialized in UX and riskmanagement for medical products
Matthias Kuss
CTO / Venture Partner
BCG | Zeiss | Allianz
| Fresenius Medical Care Data Solutions
CEO Tyme Group
Markus Oelsner
CFO
Consulting and executive coaching, over 25 years of experience as an executive/entrepreneur
Dr. Stephan Barth
CQM
Habilitated Food Toxicologist Risk and Benefit Assessments (Botanicals, Supplements)
With the help of Business Analysts, Medical Experts, Longevity Enthusiasts & Digital Product Experts.
Expertise meets innovation.
We are an experienced team deeply rooted in UX design with a proven track record in the medical field. Together with leading AI specialists and trusted partners from the health and lifestyle sectors, we’re building a platform that blends science, technology, and human insight.
Sarah Blömer
Founder + CEO
UX-Engineering, Strategy and Sales, specialized in UX and risk management for medical products
Matthias Kuss
CTO / Venture Partner
BCG | Zeiss | Allianz
| Fresenius Medical Care Data Solutions
CEO Tyme Group
Markus Oelsner
CFO
Consulting and executive coaching, over 25 years of experience as an executive/entrepreneur
Dr. Stephan Barth
CQM
Habilitated Food Toxicologist Risk and Benefit Assessments (Botanicals, Supplements)
With the help of Business Analysts, Medical Experts, Longevity Enthusiasts & Digital Product Experts.