--- title: "Low in sugar, high in flavour – Muush’s secret ingredient is a fun-gus" id: "426035" type: "post" slug: "founder-interview-muush" published_at: "2025-10-30T13:46:07+00:00" modified_at: "2025-10-30T14:46:07+00:00" url: "https://seedlegals.com/resources/founder-interview-muush/" markdown_url: "https://seedlegals.com/resources/founder-interview-muush.md" excerpt: "Matt Martin, co-founder of Muush, makes waves with a fungus-fuelled beverage – loaded with nutrients and healthy for kids and adults." taxonomy_category: - "Founder Interviews" - "Video Zone" --- 2 min read Expert reviewed This article has been fact-checked by a SeedLegals subject matter expert. [Meet our experts](https://seedlegals.com/authors-and-experts/) and learn more about our review process and quality assurance in our [editorial policy](https://seedlegals.com/editorial-policy/) . # Low in sugar, high in flavour – Muush’s secret ingredient is a fun-gus Published: Oct 30, 2025 Contents [Key takeaways](#key-takeaways) [Expert contributorAnthony RoseCo-Founder and CEO](https://seedlegals.com/resources/author/anthony/) [WriterErin DeasyJunior Content Executive](https://seedlegals.com/resources/author/erin-deasy/) What if your decision to cut sugar and choose sweeteners was harming you more than helping you? And what if we told you there was a mushroom that could change that? Mainstream beverages often fall into two camps – sugary drinks loaded with additives or plain waters that do little more than hydrate. [Matt Martin](https://www.linkedin.com/in/matthew-martin-38671243/?originalSubdomain=uk) and [Dan D’Souza](https://www.linkedin.com/in/dan-d-souza/) are mixing it up with a lion’s mane-based functional soda, helping energise buyers by fuelling their focus, boosting gut health and providing a pour of natural vitamins. Developed with the help of their cider-making friends (the founders of Cranes), [Muush](https://muush.co/?srsltid=AfmBOoq6WpdYsafQ9OPbiXP7ZuseEAfhKbMrdDO_Qj5WNrai3EsxE8_D) introduces mushrooms, without compromising on flavour, fun or nutrition. Join SeedLegals CEO[Anthony Rose](https://seedlegals.com/resources/author/anthony/) in this Founder Interview where he chats with Matt about creating a new category of drinks, built for adults and children and kept cold in a 120-litre fridge from the boot of a blue vintage Rolls-Royce. ## **Key takeaways** ### **The problem with mainstream drinks** - Most soft drinks fall into extremes – either packed with refined sugar and additives or plain hydration with little nutritional benefit. - Artificial sweeteners, though marketed as ‘healthy’, can trick the body into craving more sugar, contributing to overeating and obesity. - The market lacked a balanced, genuinely functional drink that tasted good *and* delivered real health benefits. ### **Muush’s solution** - Muush introduces a lion’s mane mushroom-based functional soda, blending flavour and wellbeing in one bottle. - Each can is low in sugar, high in fibre, and enriched with vitamins A, D3, and C – designed to support brain function, gut health, and sustained energy. - By producing in-house with help from cider-making friends at Cranes, the team saved months of development time and thousands in production costs while keeping full creative control. ### **Traction and growth** - Muush is already stocked in around 70 locations across London, with growing presence in independent stores and marketplaces like *Our Deli* and *Village Whole Foods*. - The team’s signature bright blue Rolls-Royce fridge car has become a playful part of their brand story – driving both awareness and stockist support. - With a live online store and Amazon presence, Muush is now scaling up and securing new partnerships to bring its “good-for-you” soda to a wider audience. ##### SeedLegals events ### Connect with fascinating founders Sign up to our newsletter and get the best of SeedLegals events delivered directly to your inbox By subscribing, you agree to receive information from SeedLegals. You can unsubscribe anytime. View our [privacy policy](/privacy-policy/) ## Related posts [2 min readHindered by hundreds of applications: ReechOut addresses the hassle of the hiring processHassan Ahmed, founder of ReechOut, reverse engineers the AI problem that’s been afflicting the hiring process… and it’s ... Anthony Rose](https://seedlegals.com/resources/founder-interview-reechout/) [2 min readHiring for growth stage companiesJoin SeedLegals CEO Anthony Rose and Beacon Talent founder, David Berk, to learn how to stop burning cash on the wrong r... Anthony Rose](https://seedlegals.com/resources/beacon-talent-founder-interview/) [2 min readBuilding an AI-first startup – where to start and what to changeBecoming an AI-first startup isn’t about adding features – it’s about rethinking how your business operates. In this web... Anthony Rose](https://seedlegals.com/resources/ai-first-startup/)