How Darwin Nutrition Improved User Engagement and Boosted Their Conversion Rate by 15% with Nelio A/B Testing.
The Company

Darwin Nutrition is a health and wellness online media specializing in personalized nutrition plans and high-quality supplements. Their mission is to empower individuals to achieve optimal health through science-backed nutritional advice and products
Their website is designed to educate visitors about nutritional health and drive e-commerce sales for their partners (affiliate marketing).
The Challenge
Darwin Nutrition struggled with low conversion rates and high bounce rates on key landing pages. They weren’t sure which elements were turning potential customers away, and their existing design didn’t clearly communicate the unique benefits of highlighted products in their rankings.
They aimed to increase their conversion rates by at least 20%, reduce bounce rates by 15%, and improve overall user engagement on their landing pages.
The Solution

Darwin Nutrition chose Nelio A/B Testing over other solutions because they needed a robust, user-friendly solution that allowed them to test different design elements and messaging without disrupting their existing site. Its integration with WordPress made it an ideal choice for their team.
A/B Testing Setup
Their initial tests focused on the homepage banner, CTA buttons, and the layout of their product comparison posts. The goal was to determine which combination best engaged visitors and encouraged them to make a purchase or sign up for their newsletter.
One key test on a product comparison post compared two variants:
Variant 1: After displaying the product images, a “Why You Should Trust Us” section highlighted four key points about their main features, followed by a ranking of the top three products.
Variant 2: The “Why You Should Trust Us” section was replaced with a shorter “Who We Are” section containing just a single descriptive sentence.
They hypothesized that displaying the product rankings higher up would generate more clicks on the ranked items.


✨ Key Features Used
- A/B Testing for Headlines & CTAs – Optimized messaging and call-to-actions.
- Landing Page Testing – Experimented with different layouts.
- Split Testing for Posts – To analyze which product comparison posts produced more purchases.
🔧 Implementation Process
- We had some questions about setting up our first A/B test and integrating it with our WordPress setup and the support team was incredibly responsive.
- Tests were launched and managed easily without the need of developer intervention.
- The ability to purchase additional page views when the quota runs out is especially useful during periods of high testing activity.

Nelio A/B Testing has been a game changer for us. The insights we’ve gained have led to tangible improvements in our conversion rates and overall user engagement, making it an indispensable part of our digital strategy.

Quentin Molinié
Co-founder of Darwin Nutrition
Results & Key Metrics
Thanks to Nelio A/B Testing, Darwin Nutrition has improved overall user engagement and has increased their conversion rate by around a 15%.

What Darwin Nutrition Has to Say
Impact on Business
Implementing A/B testing has not only improved our website’s performance but has also provided us with deeper insights into user behavior. This data-driven approach has allowed us to continuously optimize our digital strategy, resulting in better customer experiences and higher sales.
Support Service
Our experience with Nelio’s support team has been fantastic. They provided clear, step-by-step guidance when we had some questions about setting up our first A/B test. They even followed up to ensure everything was running smoothly. It’s reassuring to know that expert help is just a message away whenever we need it!
Would You Recommend Nelio A/B Testing?
I would highly recommend Nelio A/B Testing to any business looking to make informed decisions about their website design and user experience. It’s an essential tool for anyone serious about converting visitors into loyal customers.
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