Why Most Supplements Never Actually Reach Your Cells

If you've ever wondered whether your body can actually clear out the microplastics you're exposed to every day, this episode has real answers. Dr. Brad wraps up his three-part conversation with public health researcher Dave Roberts by getting into exactly how detox pathways work — and what it actually takes to support them. They cover new research suggesting sulforaphane (the compound in broccoli) may help mobilize microplastics stored in the body's cells for excretion, primarily through the digestive tract, and why the liver-to-bile pathway is central to getting toxins out for good. Dave also explains why so many popular supplements — resveratrol, curcumin, and glutathione among them — are poorly absorbed by the body, and why "bioavailability" matters more than the ingredient itself. The conversation closes with practical, everyday steps: what to avoid (plastic containers in the microwave, certain tea bags), the concept of bio-individuality (why the same approach doesn't work for every person), and why root-cause thinking matters more than chasing symptoms. This episode is for anyone trying to lower their toxic load, who's tried supplements without results, or who wants a clearer picture of how the body actually detoxifies. Ready to look at your own root-cause picture? Book a consult at healthfullyu.com to get started. Topics : - functional medicine - root cause healing - toxic load - microplastics detox - gut health - bioavailability - detox pathways - environmental toxins - bio-individuality - chronic illness Chapters: 00:06 - How much microplastic are we really consuming? 03:03 - New research on how the body excretes microplastics 08:37 - Practical steps to actually lower your exposure Summary: In the final part of this conversation, Dr. Brad and Dave Roberts explain how the body actually clears out microplastics, why so many supplements never reach the cells that need them, and why root-cause thinking beats chasing symptoms. Guest: Dave Roberts, public health researcher affiliated with MARA Labs — mara-labs.com Want to map out your own root-cause plan? Book a consult at healthfullyu.com.