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Gut-Brain Connection, probiotics and Alzheimer's

Probiotics and Alzheimer’s: Unlocking the Gut-Brain Connection for Healthy Aging

Digestive Health, Healthy Aging, Probiotics / By

Have you ever heard the phrase “trust your gut”? Science now shows that your gut health doesn’t just affect your stomach; it also affects your brain. Exciting new research reveals that probiotics, the “good” bacteria found in probiotic supplements and certain foods, might play a key role in keeping your brain healthy as you age and could even help slow the progression of Alzheimer’s disease.

 

Ready to explore how probiotics can support your brain health? Keep reading to discover the latest research and practical steps you can take today.

 

The Gut-Brain Connection: Why Your Stomach Talks to Your Brain

Your gut and brain maintain constant communication through what scientists call the gut-brain axis. This network of nerves, hormones, and immune signals connects your digestive system directly to your brain. When your gut thrives, it sends positive signals to your brain, supporting your memory, mood, and thinking skills. However, when your gut falls out of balance, it can trigger inflammation and other problems that may harm your brain.

 

What Are Probiotics and How Do They Work?

Probiotics are live microorganisms—mainly bacteria—that benefit your digestive system. You can find probiotics in foods like yogurt, kefir, and fermented vegetables. You can also feed your gut probiotics with probiotic supplements such as EndoMune Advanced Probiotics. Probiotics help keep your gut’s ecosystem in balance by crowding out harmful bacteria and supporting your immune system.

Think of probiotics as your gut’s personal security team, working 24/7 to keep harmful invaders out while supporting the good guys.

 

Alzheimer’s Disease: A Growing Challenge

Affecting millions of people worldwide, Alzheimer’s disease is increasingly a more common form of dementia. Alzheimer’s causes memory loss, confusion, and changes in behavior. While scientists haven’t found a cure yet, they continue searching for new ways to slow down or prevent this disease. That’s where probiotics enter the picture.

 

How Probiotics May Help Protect Your Brain: The Gut-Brain Connection

Recent studies show that certain strains of probiotic bacteria do more than just support digestion; they may also help protect your brain. Here’s how probiotics seem to work to support healthy brains:

Key Brain Protection Mechanisms:

  • Reducing Inflammation: Chronic inflammation in the body and brain is linked directly to Alzheimer’s. Probiotics lower inflammation by balancing gut bacteria and calming the immune system.
  • Strengthening Critical Barriers: A healthy gut keeps harmful substances out of your bloodstream, while a healthy blood-brain barrier protects your brain. Probiotics help maintain these barriers, which may reduce Alzheimer’s risk.
  • Boosting Antioxidants: Probiotics increase antioxidant levels in your body, helping fight damage caused by free radicals—a major factor in aging and brain diseases.
  • Improving Memory and Thinking: Clinical trials show that people with Alzheimer’s and mild cognitive impairment who take probiotics often experience improved memory, attention, and overall thinking skills.

 

What Does the Research Say?

Let’s break down some of the latest findings in:

Animal Studies

Researchers found that a special mix of human-origin probiotics reduced memory loss and harmful protein buildup in mice brains. The mice also showed less inflammation and healthier gut and brain barriers.

Human Studies

Reviews of clinical trials of people with Alzheimer’s and other brain diseases show probiotics improve cognitive function, lower inflammation, and boost antioxidant levels. Scientists observed these benefits in both older adults with mild memory problems and those with Alzheimer’s.

 

How to Support Your Brain with Probiotics

If you want to support your brain as you age, here are some actionable steps you can take:

Dietary Approaches:
  • Eat Probiotic-Rich Foods: Include Yogurt, Kefir, Sauerkraut, and Kimchi in Your Diet and Avoid Highly Processed Foods.
  • Add Prebiotic Foods: Feed Your Good Bacteria with Fiber-Rich Foods Like Cabbage, Onions, and Bananas (Especially Green Bananas).
  • Maintain Dietary Diversity: Eat a Variety of Colorful Fruits and Vegetables to Support Gut Bacteria Diversity.
Lifestyle Factors:
  • Stay Active: Exercise Regularly to Boost Both Gut and Brain Health.
  • Engage Your Mind: Mental Activities also Play a Big Role in Keeping Your Brain Sharp.
  • Manage Stress: Chronic Stress Can Harm Both Your Gut and Brain Health.

Ready to Support Your Brain Health?

If you want to explore high-quality probiotic options that help protect your brain and achieve overall wellness, consider a multispecies advanced probiotic supplement like an EndoMune Probiotic.

Take the next step in supporting your gut-brain connection today!

Don’t wait—your future self will thank you for taking steps today to protect your brain health.

 

Key References Supporting Probiotics for Brain Health and Alzheimer’s

1. Protection of Alzheimer’s disease progression by a human-origin probiotics cocktail Nature, Scientific Reports

URL: https://www.nature.com/articles/s41598-024-84780-8

Summary: Demonstrates that a unique probiotic cocktail reduces cognitive decline and Alzheimer’s pathology in a mouse model by improving gut and blood-brain barrier integrity and reducing inflammation.

2. Effects of Probiotics on Neurodegenerative Disease-Related Symptoms and Systemic Inflammation: A Systematic Review PubMed

URL: https://pubmed.ncbi.nlm.nih.gov/39678681/

Summary: Systematic review of 22 RCTs showing that probiotics improve cognitive function, reduce systemic inflammation, and enhance antioxidant capacity in patients with neurodegenerative diseases, including Alzheimer’s.

3. Effect of probiotics on cognitive function and cardiovascular risk markers in Alzheimer’s disease and mild cognitive impairment: An umbrella meta-analysis PubMed

URL: https://pubmed.ncbi.nlm.nih.gov/40200373/

Summary: Meta-analysis of 13 studies involving over 3,900 patients finds that probiotics significantly improve cognitive function and metabolic health in AD and MCI, likely via anti-inflammatory and antioxidant mechanisms.

4. Probiotics for Alzheimer’s Disease: A Systematic Review PMC (PubMed Central)

URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746506/

Summary: Systematic review summarizing evidence that probiotics can slow AD progression by modulating gut microbiota, reducing inflammation, and counteracting oxidative stress, with minimal adverse effects.

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Could poor gut health trigger Alzheimer’s?

Digestive Health, Healthy Aging, Mental Health / By

Recently, we discussed how the brain health of Alzheimer’s patients may benefit by taking a probiotic blend of beneficial bacteria without explaining “the why.”

A recent study targeting the balance of the human gut microbiome may be at the heart of accelerating the development of Alzheimer’s, according to Scientific Reports.

Researchers discovered the link between poor gut health and Alzheimer’s while comparing the composition of gut microbiota taken from diseased and healthy mice.

Overall, at least two major kinds of gut bacteria (Bacteroidetes and Firmicutes) were found in much greater quantities in animals suffering from Alzheimer’s versus healthy mice.

The germ-free discovery

The link solidified when scientists studied the brain health of germ-free mice born without gut bacteria that received transplants of gut bacteria from animals with Alzheimer’s.

Before those transplants, germ-free mice had significantly smaller amounts of beta-amyloid plaque, protein fragments that build up between neurons in the brain. After the transplants, even those “clean” animals were vulnerable to the growth of brain-killing beta-amyloid plaque.

Typically, the healthy brain breaks down those fragments and sheds them. As beta-amyloid plaque and neurofibrillary tangles accumulate in the brain, however, the symptoms of Alzheimer’s begin to present themselves.

“Our study is unique as it shows a direct causal link between gut bacteria and Alzheimer’s disease,” says Dr. Frida Fåk Hållenius, according to a press release. “The results mean that we can now begin researchers ways to prevent the disease and delay the onset.”

Take these steps to avoid Alzheimer’s disease

Although you can’t prevent Alzheimer’s disease at this juncture, there’s lots of things you do to reduce your risks just by taking better charge of your health.

The results of this study could drive attention away from antiretroviral drugs that merely treat symptoms to a wider scope of weapons related to preserving a balance of gut bacteria that could do more good, including probiotics.

Since as much as 90 percent of your body’s serotonin (the chemical that transmits messages from one side of your brain to another) is produced in your gut, it’s no surprise that scientists would target more therapies there.

All the more reason, you should include taking a multi-species probiotic, like EndoMune Advanced Probiotic with 10 proven strains of bacteria, every day to that list of steps you take to avoid Alzheimer’s disease.

Could poor gut health trigger Alzheimer’s? Read More »

Good gut health allows chocolate to sharpen your brain

Diet, Mental Health / By

Earlier this year, you learned how eating polyphenol-rich dark chocolate can benefit your health and why your gut plays an important role in that process.

In fact, the presence of Bifidobacteria, one of 10 beneficial strains contained in EndoMune Advanced Probiotic and EndoMune Advanced Junior (for kids), and lactic acid bacteria is the primary reason eating dark chocolate produces healthy, anti-inflammatory compounds.

These same beneficial microbes also create the opportunity for healthy older folks to reverse age-related declines in memory, according to a recent study published by Nature Neuroscience.

An important thing to note: The declines in memory due to age that are being discussed here are far different than those experienced by folks who suffer more serious health challenges due to Alzheimer’s disease, the most common form of dementia that destroys neurons throughout the brain.

On the other hand, age-related declines in memory—forgetting a phone number or where you parked a car—usually start in early adulthood, becoming more noticeable as people approach their 50s or 60s.

Scientists at Columbia University Medical Center studied the effects of consuming dietary cocoa flavanols to confirm that age-related declines in memory were located in the portion of the brain known as the dentate gyrus (inside the hippocampus).

For the study, 37 healthy participants ranging in age from 50-69 received either a low flavanol drink (10 mg.) or a high flavanol drink (900 mg.) daily for three months. Before and after the study, patients were given memory tests, and their brains were scanned to measure the amount of blood in and the type of memories controlled by the dentate gyrus.

Patients who were given the high flavanol drink experienced terrific results compared to those receiving the low flavanol mixture.

“If a participant had the memory of a typical 60-year-old at the beginning of the study, after three months, that person on average had the memory of a typical 30- or 40-year-old,” said Dr. Scott Small, according to a press release.

Interestingly, the high flavanol product used in this study, produced by global confectionary manufacturer Mars, isn’t the same as chocolate, which is why researchers caution people not to increase their chocolate intake to replicate the effect.

In fact, attempting to eat that much chocolate rich in epicatechin (a healthy flavanol also found in tea and grapes), you’d have to eat at least 300 grams of dark chocolate a day, amounting to seven average bars.

Also, scientists reported no additional activity in the entorhinal cortex, another region in the hippocampus that’s affected early in the onset of Alzheimer’s disease.

For this high flavanol drink to work so well in these experiments, it has to be “processed” by intestinal bacteria so that the active agents are absorbed and work to improve the brain’s ability to retain memories.

The real story “behind” the study: To enjoy these chocolatey benefits, ensure that you have a healthy gut by taking a quality multi-species probiotic like EndoMune Advanced.

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