4 Reasons Your Microbiome Matters
Your microbiome might be invisible, but its impact on your health is HUGE. Here’s why you should pay attention to it:
First off—what is your “microbiome”?
Your microbiome is the trillions of bacteria, fungi, and other microbes living in your gut—and they do a lot more than just help you digest food. They regulate your mood, metabolism, immune function, and even brain health.
In the 1990s, our founder Donna Gates pioneered the concept of the inner ecosystem, recognizing that gut health was the foundation of overall well-being—long before science caught up. Today, research confirms what she knew all along: your microbiome is the control center for how you think, feel, and function.
Here’s why your microbiome matters:
Your Gut Controls Your Brain (and Mood)
Your microbiome produces over 90% of your serotonin—the neurotransmitter responsible for mood, sleep, and stress resilience.
This is part of the gut-brain axis, a two-way communication network between your gut and nervous system. An imbalanced microbiome has been linked to anxiety, depression, and brain fog, while a thriving gut supports mental clarity and emotional balance.
Your Immune System Starts in Your Gut
Approximately 70% of your immune system is housed in the gut, where beneficial microbes train immune cells to distinguish between harmful invaders and friendly bacteria. Research shows that dysbiosis (microbial imbalance) is linked to autoimmune conditions and chronic inflammation.
A diverse gut microbiome helps regulate immune response, reducing the risk of everything from seasonal allergies to long-term inflammatory diseases.
Your Microbiome Influences Energy and Metabolism
Your gut bacteria don’t just digest food—they extract nutrients, regulate blood sugar, and even impact how much energy you burn. Studies show that certain probiotic strains, like Bifidobacterium lactis, support digestion and the production of short-chain fatty acids (SCFAs), which fuel the body and help regulate metabolism.
A well-balanced microbiome plays a role in sustained energy, insulin sensitivity, and fat metabolism, proving that gut health is directly linked to how efficiently your body produces and uses energy.
Digestion and Nutrient Absorption Depend on Microbial Balance
Your microbiome helps break down fiber, ferment resistant starches, and produce short-chain fatty acids (SCFAs) like butyrate, which fuel the cells lining your gut.
Without a strong population of beneficial bacteria, digestion slows, nutrient absorption declines, and common issues like bloating, constipation, and food intolerances become more frequent.
Poor gut health has even been linked to leaky gut syndrome, where unwanted particles escape into the bloodstream, triggering widespread inflammation.
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Who is Donna Gates?
Donna Gates, M.Ed., ABAAHP, is the international best-selling author of The Body Ecology Diet: Recovering Your Health and Rebuilding Your Immunity and The Body Ecology Guide to Growing Younger: Anti-Aging Wisdom for Every Generation. For the last 25 years, she has been on a mission to change the way the world eats. Her first book, The Body Ecology Diet, introduced the world to a sugar-free, gluten-free, casein-free, and probiotic-rich diet and a way of life that is now followed by tens of thousands of people around the world. The Diet grew to popularity initially by word of mouth and all these years later, still stands the test of time.
What is the Body Ecology Diet?
The Body Ecology Diet (BED) shows you how to restore and maintain the important “inner ecology” your body needs to function properly and to eliminate or control the symptoms that rob you of the joy of living.
With the confusing array of supplements, health foods and fads out in the marketplace today, Body Ecology offers a back-to-basics approach to restoring health and vitality. The straightforward necessities we provide are all geared to one fundamental law of nature: the fact that our digestive systems are intimately linked to our immune, endocrine, circulatory and central nervous systems.
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