We Called It! Diabetes Drug Shows Alzheimer’s Promise

We called it…

Last April, in the Health Sciences Institute, we published a cover story that raised eyebrows.

It wasn’t about the weight-loss craze or A-list celebrities touting their latest slim-down. It was about what those now-famous GLP-1 drugs, like Ozempic and Wegovy, might be doing inside the brain.

Not just lowering blood sugar or shrinking waistlines… but possibly slowing down or even reversing one of the most feared diseases of our time: Alzheimer’s.

And now, a new study published in JAMA Neurology confirms what we saw coming a year ago.

Researchers from University of Galway analyzed 26 clinical trials—including more than 160,000 participants—and found something striking.

While most glucose-lowering therapies weren’t significantly tied to dementia risk… one class of drugs was: GLP-1 receptor agonists (GLP-1Ras)—the very same drugs used to treat Type 2 diabetes—were associated with a 45% lower risk of developing dementia.

That’s a staggering finding.

But before you start thinking this class of drugs is a miracle cure, let’s step back for a moment.

Yes, GLP-1s may help prevent dementia—but the real benefit isn’t in the drug itself. It’s what the drug does: it helps regulate blood sugar.

And that’s the real takeaway.

Because whether you manage your blood sugar with medication, supplements, diet, or lifestyle—the outcome is what matters most.

And emerging research makes it crystal clear that unstable or elevated blood sugar can wreak havoc on your brain.

High blood sugar:

• Damages blood vessels, limiting nutrient delivery to brain cells
• Increases inflammation, accelerating cell death
• Triggers the production of amyloid proteins—the “sticky” substance tied to Alzheimer’s plaques

So if we can keep blood sugar in check, we can slow—or possibly prevent—some of the brain changes that lead to cognitive decline.

And yes, GLP-1 drugs may help do that.

But we’re learning that these drugs come with possible side effects—nausea, diarrhea, and even serious concerns like pancreatitis and gallbladder issues. Not to mention they’re expensive and still relatively new, with long-term impacts not yet fully understood.

That’s why we always recommend starting with safer, more natural blood sugar strategies first.

Here are a few powerful, natural ways to support healthy blood sugar—while protecting your brain:

• Eat more fiber. Soluble fiber slows glucose absorption and improves insulin sensitivity. Think beans, chia seeds, avocados, and oats.
• Prioritize movement. A 30-minute walk after meals can blunt blood sugar spikes—and has been shown to enhance cognitive health, too.
• Add targeted supplements. Berberine, cinnamon, and alpha-lipoic acid all support healthy glucose metabolism and may protect the brain from glycation-related damage.
• Don’t skip protein and fat. They slow digestion and help regulate your energy—and appetite.
• Limit ultra-processed carbs. White flour, sugary cereals, and sweetened drinks wreak havoc on your glucose—and your brain.

If your doctor does recommend a GLP-1 drug, remember: the drug is just a tool. It’s not a substitute for making the kinds of daily choices that truly support lifelong brain health.

So yes—GLP-1s may help. And yes, we called it last year. But blood sugar control is the real brain booster here.

You may decide the benefits of GLP-1s outweigh the risks—and if so, that’s great! We’re all about arming you with the knowledge to make informed decisions for your health.

YOU get to decide how to get there. Just make sure it’s a path that works for your body—and your long-term health.

To blood sugar control—how you choose,

Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team