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The Antibiotics That Reversed Alzheimer's Blood Marker - Dr. Richard Horowitz artwork

The Antibiotics That Reversed Alzheimer's Blood Marker - Dr. Richard Horowitz

The Ultimate Human with Gary Brecka

September 8, 2026

Mold toxins show up in 90% of Dr. Richard Horowitz's chronically ill patients, and Lyme shows up in more. After 41 years and 13,000 cases, he just published the first documented reversal of an Alzheimer's blood marker using nine weeks of oral antibiotics.

Speakers Richard Horowitz, Gary Brecka

TopicsHealth & Fitness

Richard Horowitz (0:00)

42% of people 55 years or older are expected to become demented. And yet, they spend $2.4 billion a year at the NIH, and no one has come up with a solution for it.

Gary Brecka (0:10)

When we realize that we spend $5 trillion a year on healthcare, we estimate that 85% of all chronic disease is preventable. We have to start looking at things like our chemical supply, our food supply, our water, our air, as microtoxic environments that accumulate over time.

Richard Horowitz (0:25)

And ultimately, what does it come down to? Inflammation in the brain. All chronic disease is driven by chronic inflammation. But where's the inflammation coming from? Bacteria, viruses, parasites, fungi, microbiome issuance in the gut, vitamin mineral deficiencies, sleep disorders.

Gary Brecka (0:40)

We are waking up to infectious disease and toxicity as a root cause of some of the most prevalent chronic conditions that plague society and mankind.

Richard Horowitz (0:50)

And I don't know why this happened in medicine, but they're like naming a disease and throwing drugs at it instead of getting to the underlying causes.

Gary Brecka (0:56)

For the folks that are watching this, where do we start with testing? Just get a dashboard of what kind of villain we're after.

Richard Horowitz (1:04)

For those of us who want to optimize our health, I discovered that...

Gary Brecka (1:21)

Hey guys, welcome back to The Ultimate Human Podcast. I'm your host, human biologist, Gary Brecka. Today's episode is deeply personal for me. Like a lot of people my age, I've been watching my own mother's memory decline. I've been searching for answers. Not just a diagnosis of, it's aging. My guest is Dr. Richard Horowitz, a board certified internist who's treated over 13,000 patients over 41 years. He is widely considered the closest thing that the chronic illness world has to a master diagnostician. Dr. Horowitz developed the MSIDS model, 16 hidden factors from Lyme disease and Bartonella to mold and toxins that quietly drive everything from brain fog to Alzheimer's. He just published the first study showing this same model reversing PTAL-217, the most sensitive Alzheimer's biomarker there is, using a nine-week protocol. If you or someone you love is dealing with unexplained chronic illness or watching a parent decline like mine is and being told there's nothing that can be done, this conversation is going to give you real actionable hope. Let's get into it. Hey guys, welcome back to The Ultimate Human Podcast. I'm your host, human biologist, Gary Brecka, where we go down the road of everything, anti-aging, biohacking, longevity, and everything in between. Today is one of those in-between podcasts. It's going to be a very personal journey for me and my family. I am so excited to have this guest on the podcast because his core competency fills a void that I have been trying to fill for over 10 years.

We talk about the body spontaneously just going wrong, Alzheimer's, dementia, early onset cognitive decline, neuroinflammatory disorders, autism, ADD, ADHD, OCD, all of these chronic illnesses, autoimmune, and we just seem to have adopted the philosophy that for whatever reason, the body has somehow spontaneously just begun to malfunction.

Nothing could be further from the truth. I've been talking about mold, mycotoxins, parasites, viruses, and heavy metals for the last 10 years, but it's really a paucity of expertise in the medical community. And our next guest, Dr. Richard Horowitz, is probably the closest thing that the chronic disease world has to a master diagnostician. And he is a monolithic giant. I'm excited to read his book, and welcome to the podcast.

Richard Horowitz (3:45)

Thank you, Gary. It's great to be here.

Gary Brecka (3:47)

Dr. Horowitz, I'm so excited for this. And I, you know, when I was prepping for the podcast, I thought about the framing around this and all the different avenues that we could go down. But you know, I'm on a very personal journey right now.

Like a lot of people my age, I'm 55 years old. I know I look 20, so don't let that shock you.

Richard Horowitz (4:04)

I was thinking 25, I wasn't sure.

Gary Brecka (4:07)

I'm just trapped in this gorgeous body. But you know, like a lot of people my age, you know, we're facing that decision about our parents. You know, is it time to bring them back in with us? Is it time to get them into some kind of assisted care, memory care, you know, skilled nursing facility? And it's a really hard decision. And what really prompted this journey for me, you know, my parents live in Tennessee and I'm in Miami, so I don't, I wasn't seeing them that often. My dad was calling me sort of more and more frequently about my mom repeating herself all the time and sort of forgetting things. And then the pattern tightened, meaning like her short term memory got worse and worse and worse and seemed to cataclysmically go off of a cliff.

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