How Whole Health Studio built a supplement quiz that finishes, converts, and still collects the email
- Aug 12
- 4 min read
Most quizzes are good at one thing. They either finish well, or they collect emails well, or they convert well - rarely all three, because the choices that help one tend to hurt the others. Ask for an email and completion drops. Keep it short and you learn less. Push hard to the product and people leave.
Whole Health Studio's supplement quiz does all three at once, and the reason is mostly about the order they ask things in.
The Opportunity
Supplements are a category where shoppers know the symptom, not the product.
Someone arriving at a supplement store rarely knows whether they want magnesium glycinate or a B-complex. They know their skin is breaking out, or their gut feels off, or they're exhausted. That gap between symptom and SKU is where a shopper stalls - and where a quiz earns its place, because it turns a vague complaint into a specific recommendation without a support ticket.
Supplements carry a second complication most categories don't: some recommendations are genuinely inappropriate for some people. Pregnancy, breastfeeding and prescription medications all change what you can responsibly suggest. A quiz here isn't only a merchandising tool - it's the safest place to ask those questions before anything gets recommended.
The Solution
Seven questions that qualify before they recommend, with the email left until last.
The "Personalize Your Supplement Routine" quiz runs seven questions in a deliberate order:
1. Name: a text field, so the result page can address them directly.
2. Age range: Under 18 / 18–34 / 35–49 / 50+.
3. How do you identify? including Non-Binary and Prefer not to say.
4. Are you currently: Trying to conceive / Pregnant / Breastfeeding / None of the above.
5. Are you currently on any prescription medications? Yes / No.
6. What area of your health would you like to support? multi-select, twelve options.
7. Email.
Three design choices are doing the heavy lifting.
They qualify before they recommend. Questions 4 and 5 exist to rule things out. In a category where a wrong recommendation to a pregnant customer is a real problem, that screening happens up front — and it doubles as segmentation, because "trying to conceive" and "breastfeeding" are completely different customers with completely different baskets.
The one question that matters is multi-select. Question 6 is the only multi-select in the quiz, and it carries twelve options — energy, hormones, stress, hair, skin, sleep, psoriasis, eczema, gut, anxiety, preconception, pregnancy. Real people don't have one health concern; they have three. Forcing a single choice would produce a tidier quiz and a worse recommendation — and this is a store that recommends a routine rather than a single product, so the multi-select is what makes the routine coherent.
The email is question seven with opt-in for marketing. Not a gate on the landing page, not a wall in the middle — the very last thing, after the shopper has answered everything and is one click from their result. This is the choice that explains the numbers below.
Whole Health Studio by the numbers
All-time performance for the supplement routine quiz:
85.5% completion rate
72.5% opt-in rate
13.0% quiz-to-purchase conversion rate
The completion figure is the one worth sitting with. A quiz that asks for an email typically completes in the 60–70% range — our own benchmark calls anything above 70% "strong" for an email-gated quiz. Whole Health Studio sits at 85.5% while collecting an email from 72.5% of people. That isn't a trade-off they won; it's a trade-off they avoided, by asking last.
The conversion rate does the same job from the other end. Roughly one in eight people who engage with the quiz go on to buy, at an A$54 average order, in a category where the second and third orders are where the economics actually live.
What their answers reveal
Looking at three months of responses, the audience is narrower than you'd guess: 99% who answered the identity question selected Female, and 86% were aged 18–34. That's not a general wellness audience — it's a specific one, which informs every aspect of their business from marketing to new products.
The health concerns people select are led by gut and digestive health (44%), acne and skin health (38%), hair health (35%) and hormones (35%).
Most categories had a similar conversion rate, except Hair Health, a category in which Whole Health Studio does not currently offer a solution. However, the quiz provides them excellent insight into their product roadmap!
The takeaways you can copy
Ask for the email last. If your opt-in rate is high but your completion rate is low, the email ask probably isn't your problem — the questions before it are. If both are low, try moving the email to the final slide before you touch anything else. Whole Health Studio gets 72.5% of people to hand over an email precisely because by then they've invested six answers and can see the finish line.
Let the important question be multi-select. In any category bought as a set — supplements, skincare, coffee, pet food — forcing one choice produces a cleaner quiz and a worse recommendation. Recommend a routine, and the multi-select becomes the thing holding it together.
Then read the quiz backwards. The most valuable output here wasn't a recommendation — it was finding out that the third most popular thing customers ask is a category where Whole Health Studio doesn't currently offer a product. Your quiz is the cheapest customer research you own. With VQB's AI Insights and connector / plug-in to Claude / ChatGPT, surfacing insights is one engaging chat session away.
