Final Founder Advice: Product and Brand Soul

Loren Castle turned a life-threatening cancer diagnosis at 22 into the spark that built Sweet Loren’s, a $120M-a-year clean food brand now sold in over 5,000 supermarkets nationwide.

In this interview, Loren shares how she bootstrapped her way from baking cookies in a tiny New York apartment to landing Whole Foods without packaging, rebranding her entire product line to be allergen-free, and scaling a household name—all while staying profitable and purpose-driven.

From surviving adversity to mastering product-market fit, Loren’s story is proof that a personal mission can grow into a multimillion-dollar movement.

What you’ll learn from this interview:
• How Loren built Sweet Loren’s from $25K in savings to $120M+ in annual revenue • The pivotal moment she went all-in on allergen-free ingredients—and why it worked • How she landed Whole Foods before having proper packaging • The exact process she used to find true product-market fit through live demos • Why customer obsession is the ultimate growth strategy • How mentorship transformed her leadership and focus • The decision that created a moat around Sweet Loren’s in a saturated market • How to compete on shelf with billion-dollar CPG brands • Why staying small, focused, and profitable was the real superpower

By the end of this interview, you’ll walk away with practical lessons on product development, brand positioning, and resilience—so you can build a mission-driven brand that truly stands out in competitive markets.

SAVE 50% ON OMNISEND FOR 3 MONTHS Get 50% off your first 3 months of email and SMS marketing with Omnisend with the code FOUNDR50. Just head to ⁠https://your.omnisend.com/foundr⁠ to get started. HOW WE CAN HELP YOU SCALE YOUR BUSINESS FASTER Learn directly from 7, 8 & 9-figure founders inside Foundr+ Start your $1 trial → ⁠https://www.foundr.com/startdollartrial⁠ PREFER A CUSTOM ROADMAP AND 1-ON-1 COACHING? → Starting from scratch? Apply here → ⁠https://foundr.com/pages/coaching-start-application⁠ → Already have a store? Apply here → ⁠https://foundr.com/pages/coaching-growth-application⁠ CONNECT WITH NATHAN CHAN Instagram → ⁠https://www.instagram.com/nathanchan⁠ LinkedIn → ⁠https://www.linkedin.com/in/nathanhchan/⁠ CONNECT WITH LOREN CASTLE Website → https://sweetlorens.com/ Instagram → https://www.instagram.com/lorenbcastle/ LinkedIn → https://www.linkedin.com/in/loren-brill-castle/ FOLLOW FOUNDR FOR MORE BUSINESS GROWTH STRATEGIES YouTube → ⁠https://bit.ly/2uyvzdt⁠ Website → ⁠https://www.foundr.com⁠ Instagram → ⁠https://www.instagram.com/foundr/⁠ Facebook → ⁠https://www.facebook.com/foundr⁠ Twitter → ⁠https://www.twitter.com/foundr⁠ LinkedIn → ⁠https://www.linkedin.com/company/foundr/⁠ Podcast → ⁠https://www.foundr.com/podcast