This case study outlines how Huel, a plant-based food brand, utilizes Mention Me's brand advocacy platform to enhance customer acquisition and drive sustainable growth. Launched in 2017, the platform leverages Huel's community of loyal customers, referred to as Hueligans, to generate word-of-mouth recommendations. The study details that up to 22% of customers refer friends, with 60% of these referrals converting into new customers. Additionally, referred customers are noted to introduce twice as many new shoppers compared to non-referred customers, which significantly contributes to Huel's expanding community across 12 global markets. The case study also highlights the effectiveness of product imagery in referral offers, particularly in the US, where 72% of such offers convert into new customers. Furthermore, it reports a year-on-year growth of 12% in referral revenue, showcasing the impact of advocacy-first strategies on Huel's marketing efforts.