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Home ยป Podcast ยป Episode 18: Seaton & Jill Smith on Creating Safe Oats and Navigating the Challenges of Gluten Testers

Episode 18: Seaton & Jill Smith on Creating Safe Oats and Navigating the Challenges of Gluten Testers

Last Updated January 6, 2026. Published September 9, 2025 Good For You Gluten Free

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Episode 18: Seaton & Jill Smith on Creating Safe Oats and Navigating the Challenges of Gluten Testers

Seaton and Jill Smithโ€™s celiac journey began in 1990 when their young son was diagnosed with celiac disease. Soon after, they discovered they had celiac disease, too. With gluten-free options nearly nonexistent, the family leaned on a local support group for helpโ€”but they didnโ€™t stop there.

Their experience inspired GF Harvest, the first certified gluten-free oats produced under strict purity protocols, setting a new benchmark for safe oats. Along the way, they mastered building a brand from scratch and educating families about what โ€œgluten-freeโ€ truly means.

Retirement didnโ€™t last long. Meeting Dr. Leo during their journey led them to create LEO Verification Systems, a portable gluten tester, sparking both excitement and debate in the gluten-free community.

In this episode, we dive into:

  • The Smith familyโ€™s personal celiac journey
  • How their passion pulled them out of retirement
  • Lessons from building GF Harvestโ€”and a gluten-free oat brandโ€”from scratch
  • Why oats have long been a tricky ingredient in the gluten-free world
  • The promises and challenges of the LEO gluten tester and why it’s controversial
  • Navigating the hope and criticism around at-home gluten-testing technology

From purity oats to portable gluten testers, we dive into the challenges, controversies, and triumphs of the Smithsโ€™ journey.

Listen to the full episode on Gluten Free Unwrapped wherever you get your podcasts.

About Seaton & Jill Smith and LEO Verification Systems,

  • Visit leoverified.com
  • Instagram: @leo2verified
  • Facebook: @leoverified

About the Host

Jenny Finke is the host of Gluten Free Unwrapped. Sheโ€™s a longtime blogger at Good For You Gluten Free and founder of the popular gluten-free subscription boxes, Love Me Gluten Free.

You can follow Jenny on Instagram at @goodforyouglutenfree or subscribe to her newsletter at welcome.goodforyouglutenfree.com.

You can snag a Love Me Gluten Free subscription box at lovemeglutenfree.com and follow on Instagram (@lovemeglutenfree) or Facebook (@lovemeglutenfreebox).

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Welcome to Good For You Gluten Free

Hi, I'm Jenny Levine Finke and am passionate about the gluten-free lifestyle. I'm a certified integrative nutrition coach and self-taught expert on [most] gluten-free things. I have celiac disease and know the struggles you're going through first-hand. This is why I've dedicated this blog to serving the celiac and gluten sensitive communities with important information, product and restaurant reviews, and simple recipes I hope you'll love. Read Moreโ€ฆ

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