Chatbot vs Questionnaire in Nutrition Research

research summary

We're looking for people aged 18+ to compare an AI chatbot with a traditional food questionnaire. Quick, easy, and fully online, your input helps us improve digital health tools.Text

introduction

We’re developing a smarter way to track your diet, with the help of a conversational AI chatbot! To test it, we’re looking for adults (18+) to complete a short nutrition questionnaire and have a chat with our bot. Quick, online, and your input helps shape future health tech!

what are we working on?

We aim to improve how people report what they eat by comparing a traditional nutrition questionnaire with a friendly, conversational chatbot. Chatbots are a new way to collect dietary data, but it’s still unknown if people engage with them better. In this study, you’ll help us test if the chatbot is more enjoyable and effective than the old way. We are looking for adults (18+) who want to help improve health technology.

What do we ask of you?

• You will participate in two short sessions over two days.
• First, you’ll fill out a standard nutrition questionnaire.
• The next day, you'll interact with the AI chatbot.

After each session, you’ll answer a short evaluation form (5 questions). In total, it will take about 20 minutes of your time. In the end, you'll receive a personal overview of your nutritional intake. Your feedback will directly help us improve future digital health tools.

who can participate and when?

You can participate anytime between October and December 2025.

The study takes place entirely online, so you can participate from anywhere. All you need is a device with internet access. We're looking for adults aged 18 and over. There are no other restrictions.

additional information

Participation is voluntary, and there is no financial compensation, but you will receive a downloadable overview of your nutrition and help improve future health technology.

meet the researcher

Giacomo Spada

My name is Giacomo Spada, and I am a Master's student in Interaction Technology at the University of Twente. My thesis focuses on improving user interaction with digital health tools, especially chatbots.

I collaborate with the University of Twente for the broader research and development of the Nutri+ system. This research is part of a university thesis and not externally funded.

intrested in participating?

Would you like to participate? Please enter your name and email address in the registration form (and optionally your phone number). Within 3 working days, I will contact you by phone or email to see whether participation is possible and to schedule your appointment.

• Participation in scientific research is always voluntary.
• When you sign up for a study, you will receive an automatic confirmation email. This email will inform you when you can expect to hear from the researcher.
• The researcher will then contact you with more information about the study and answer any questions you may have.
• After this contact, you will confirm your participation and fill out a consent form.
• Once you have given your consent, you will receive a copy of the consent form.
• An ethical committee has reviewed this study and provided a positive recommendation, ensuring that the research is scientifically rigorous and conducted according to participants' rights.
• Your contact information will only be used as you have indicated. We will only share your details with the researcher of the study you are participating in. If you have opted to stay informed about new research, you will receive a maximum of one update per month. If there are any changes to this, we will contact you first.  Read here for detailed information on how we handle personal data.