Send us a text 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 g...