RFK Jr. Wants Everyone in a Glucose Monitor. The Science Says Not So Fast.

In late June, Robert F. Kennedy Jr. announced one of his splashiest health ideas yet: he wants every American in a wearable within four years. At the center of that vision are continuous glucose monitors (CGMs) — the small quarter-sized patches that track blood sugar 24/7 and beam the data straight to your phone. He eventually walked it back slightly to acknowledge the prohibitive cost, but continues to push wearables like CGMs as instrumental for public health. The question worth asking — the one that isn't getting enough airtime, is whether continuous glucose monitors actually benefit healthy people at all.

The answer, based on available evidence, is no.

For people with diabetes, CGMs have been revolutionary. They help manage a condition affecting more than 38 million Americans by reducing risks of kidney disease, vision loss, and heart disease. When your body can't produce or respond to insulin, seeing blood sugar levels in real time can be the difference between stable health and a medical emergency. In that context, CGMs aren't optional, they're lifesaving.

But Kennedy's pitch isn't about diabetes. It's about everyone else.

Do Continuous Glucose Monitors Actually Improve Health Outcomes?

He argues that healthy Americans can "take control of their own health" if they see how every meal or workout affects their glucose levels. Eat a sandwich, watch your blood sugar spike, make a "better choice" next time. This framing leans heavily on a familiar wellness narrative: if you aren't perfectly healthy, it's because you haven't tracked enough, optimized enough, or been disciplined enough. That it all comes down to personal choices.

The science doesn't back it up. Endocrinologists point out that in people without diabetes, the body already regulates blood sugar efficiently. Yes, glucose rises after meals, that's normal physiology, not a crisis. There are no published studies showing CGMs improve health outcomes for people with normal glucose metabolism. Experts warn that zooming in on every tiny swing risks pathologizing normal biology, or worse, encouraging disordered eating in the name of "control."

These devices also aren't perfect. CGMs can lag minutes behind actual blood glucose levels and produce noise that, for a clinical population, is still preferable to finger pricks. For healthy users, that same imprecision generates anxiety about normal, fleeting spikes that have no meaningful long-term effect. We've covered how wellness culture manufactures exactly this kind of health anxiety on the podcast, the mechanism here is the same.

Why CGMs Without Diabetes Are a Booming Market

The push to get CGMs on everyone's arm isn't just about health, it's about a market. The global wellness economy is worth trillions, and companies know there are far more healthy, anxious consumers than there are patients with diabetes. Abbott just launched Lingo, a consumer-facing CGM marketed as a "metabolic awareness" tool for people without medical diagnoses. Casey Means, Kennedy's nominee for Surgeon General, co-founded Levels, another CGM-driven lifestyle brand. The incentive to expand the market is enormous.

Which brings us back to the rhetoric. Framing CGMs as a tool for "personal responsibility" shifts attention away from systemic drivers of poor health, food deserts, lack of affordable healthcare, structural inequality, and onto individual choices. It suggests that if you're sick, it's because you didn't track hard enough. That's not just scientifically flimsy. It's politically convenient.

The Bottom Line

CGMs are extraordinary for people with diabetes. They can be an interesting self-experiment for the curious. But until there's strong, independent evidence that continuous glucose monitors benefit healthy people, the hype is mostly that: hype. Americans don't need more data points to worry over. They need access to affordable care, nutritious food, safe places to move, and policies that actually support public health.

Be skeptical of anyone promising that a patch on your arm is the key to "making America healthy again."

Want to go deeper on how wellness culture monetizes health anxiety? That's exactly what we do on Your Diet Sucks. And if you want the full evidence breakdown — studies, sources, and Kylee's clinical take — that's what the Patreon community is for.