Robyn Openshaw: Behind the Curtain of the Supplement Industry - Is What's in that Bottle Eroding Health and Wasting Money?

Robyn Openshaw: Behind the Curtain of the Supplement Industry - Is What's in that Bottle Eroding Health and Wasting Money?

October 4, 2025 · 1h 27m · Episode 58

About this episode

Robyn Openshaw discusses the hidden realities of the supplement industry and the questionable practices behind vitamin production.

Send us Fan Mail The label says “natural,” but who’s actually making your vitamins—and what’s riding along inside each capsule? I sat down with Robyn Openshaw to follow the supply chains few consumers ever see, from GMO-corn byproducts turned into “vitamin C,” to deodorized fish oils engineered to hide rancidity, to wool-grease–derived cholecalciferol sold as “vitamin D.” The picture that emerges isn’t a quaint herb shed; it’s industrial chemistry optimized for shelf life, margins, and market...

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