BiotiQuest® Gut Health & Probiotics Blog with Martha Carlin

Microbiome Makeover: The Hidden Root of Chronic Disease and How to Fix It with Martha Carlin

Martha Carlin | Jul 16, 2025 | podcast

In a compelling episode of the Over 50 Health & Wellness Show, host Kevin English sits down with microbiome expert Martha Carlin to explore the profound impact of gut health on chronic disease, aging, and overall vitality. Martha’s journey into microbiome research began with a personal mission to help her husband after his early Parkinson’s diagnosis, leading her to become a pioneering force in gut health science.

Key Insights from the Conversation

1. The Microbiome: Our Internal Ecosystem Martha defines the microbiome as “the trillions of bacteria, fungi, and viruses that live in and on our body,” which function as “our internal pharmacy to maintain our health.” Remarkably, microbial cells outnumber human cells by about two to one, and their genetic information surpasses ours by 100 to 300 times. These microbes produce essential hormones, neurotransmitters like serotonin and melatonin, and vitamins critical for our well-being.

2. Gut Health as the Root of Chronic Disease Martha highlights how modern factors such as antibiotics, processed foods, and chronic stress disrupt the gut microbiome, leading to inflammation and chronic diseases. She explains, “Most antibiotics actually come from microorganisms, so the ones resistant to antibiotics are often producing antibiotics themselves, which can kill the good bacteria in our gut.” This imbalance creates a more aerobic environment favoring harmful bacteria that produce endotoxins, damaging the gut lining.

3. The Connection Between Soil Health and Human Health A fascinating part of the discussion centers on the link between soil microbiomes and our own gut health. Martha notes, “The same problem that’s happening in our guts is actually happening in the soil.” Modern monocropping and synthetic fertilizers deplete soil nutrients, resulting in less nutrient-dense food. She stresses, “Your food’s not going to be as healthy if it’s not grown in healthy soil.”

4. Practical Steps to Restore Gut Health Martha offers actionable advice for healing the gut:

  • Eliminate processed and ultra-processed foods.
  • Incorporate fermented foods like sauerkraut, kimchi, and traditional drinks such as beet kvass.
  • Focus on whole, nutrient-dense foods, avoiding inflammatory triggers like certain grains and dairy from grain-fed cows.
  • Use supplements wisely, favoring whole-food-based vitamins and humic fulvic mineral supplements to restore mineral balance.
  • Practice mindful eating, stopping before feeling completely full to avoid overeating.

5. The Role of Supplements and Probiotics While whole foods are foundational, Martha acknowledges the role of supplements in today’s nutrient-depleted environment. She cautions, “You can overdo it with minerals,” recommending balanced, whole-food-based supplements. Her company, BiotiQuest, develops functional probiotics designed to restore specific gut functions, such as their product Sugar Shift, which supports metabolic health by reducing inflammatory triggers.

6. The Future of Gut Health and Medicine Looking ahead, Martha envisions a continued tension between synthetic, reductionist approaches and holistic, regenerative methods. She emphasizes personal responsibility: “Our role in our health is our own accountability and our own choices... If we outsource that to an app or a company, then we are abdicating what we’re here to do.” She remains optimistic about the rise of nutrient-dense eating and regenerative agriculture as keys to restoring health.

Memorable Quotes from Martha Carlin

  • “Your gut is your general ledger and that’s going to tell you the state of well-being of your whole system.”
  • “We are typically depleted of vitamin C... When you’re looking at vitamin C, you want a whole food vitamin C. Whole food vitamin C is very different than ascorbic acid.”
  • “The food industry has a term called bliss point... designed to be hyper-palatable so that you will overeat.”
  • “We can make a difference and we can restore our health and the health of our planet.”

Final Thoughts

This episode is a treasure trove of wisdom for anyone seeking to understand the hidden root of chronic disease and how to reclaim health through the microbiome. Martha Carlin’s blend of personal experience, scientific expertise, and practical guidance offers hope and a clear path forward. Whether you’re struggling with gut issues, chronic inflammation, or simply want to optimize your health, the message is clear: nurture your microbiome, choose whole foods, and take ownership of your well-being.

With gratitude,

Martha Carlin photo Martha Carlin, is a “Citizen Scientist”, systems thinker, wife of Parkinson’s warrior, John Carlin, and founder of The BioCollective , a microbiome company expanding the reach of science and BiotiQuest, the first of it’s kind probiotic line. Since John’s diagnosis in 2002, Martha began learning the science of agriculture, nutrition, environment, infectious disease, Parkinson’s pathology and much more. In 2014, when the first research was published showing a connection between the gut bacteria and the two phenotypes of Parkinson’s, Martha quit her former career as a business turnaround expert and founded The BioCollective to accelerate the discovery of the impact of gut health on all human disease. Martha was a speaker at the White House 2016 Microbiome Initiative launch, challenging the scientific community to “think in a broader context”. Her systems thinking background and experience has led to collaborations across the scientific spectrum from neuroscience to engineering to infectious disease. She is a respected out of the box problem solver in the microbiome field and brings a unique perspective to helping others understand the connections from the soil to the food to our guts and our brains.

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