Nudging plant-based protein purchases in a real-life online supermarket

Nudging plant-based protein purchases in a real-life online supermarket: a randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN16569242

Enrollment

1537

Registered

2022-03-14

Start date

2022-05-18

Completion date

Unknown

Last updated

2024-03-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Promoting plant-based protein products among the general population Not Applicable

Interventions

Current interventions: Arm 1: Regular online supermarket (control). Arm 2: Online supermarket with the addition of nudges on plant based protein products. Randomization and allocation is performed by

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Current inclusion criteria as of 13/06/2022: All customers placing a delivery order (i.e., shops) in a real-life online supermarket between mid May 2022 until mid September 2022. Previous inclusion criteria: All customers placing a delivery order (i.e., shops) in a real-life online supermarket between mid February 2022 until mid June 2022.

Exclusion criteria

Exclusion criteria: Does not meet inclusion criteria

Design outcomes

Primary

Measure	Time frame
The number of plant-based protein products purchased measured using the online shopping website at a single time point	—

Secondary

Measure	Time frame
Measured using the online shopping website at a single time point: 1. The number of purchases from (a) meat, (b) plant-based meat substitutes, (c) dairy products, and (d) plant-based dairy products. 2. Total revenue in Euros.	—

Countries

Netherlands

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 9, 2026