Dr. Zach Bush: How the Microbiome Affects Metabolism, Brain Health, and Chronic Disease

Join The Circle and use code "PODCAST": https://holplus.co/circle/ What if chronic disease, declining energy, cognitive issues, and fertility challenges are not isolated problems, but signs of a deeper disconnection from the natural world?

In this episode of hol+ with Dr. Taz MD, Dr. Zach Bush explores the relationship between human health and the health of our environment. Drawing from his background in internal medicine, endocrinology, cancer research, and hospice care, he explains how his search for the root causes of disease led him from the hospital and laboratory to the microbiome, soil science, and regenerative agriculture.

Dr. Bush describes mitochondria as essential generators of cellular energy and explains how the microbes living within and around us help support metabolism, immunity, neurological function, and communication throughout the body. He shares his perspective on how chemical agriculture, declining biodiversity, and changes in our food systems may be affecting these biological relationships.

Dr. Taz and Dr. Bush also discuss the rise of obesity, insulin resistance, autoimmune disease, cognitive decline, chronic fatigue, and infertility. Dr. Bush presents his theory that these conditions may be connected through a broader decline in metabolic energy and our increasing separation from nature.

The conversation ultimately turns toward hope and practical action. Dr. Bush explains why restoring soil, supporting regenerative farmers, growing food, strengthening local communities, and spending more time in direct contact with nature may help rebuild both human and planetary health. He also shares how something as simple as growing a mint plant can begin restoring a family’s relationship with living food.

In this episode:

Dr. Bush’s journey from conventional medicine to microbiome and soil researchWhat mitochondria do and why they are essential for cellular energyHow the microbiome influences metabolism, immunity, and brain functionThe relationship between soil health, food quality, and human healthHow chemical agriculture may disrupt biological communicationWhy Dr. Bush describes modern illness as nature deficit disorderHis theory connecting metabolic decline with chronic disease and fertilityWhy supplements cannot fully replace a healthy food systemHow regenerative agriculture can support human and planetary healthSimple ways to reconnect your family with food, soil, and natureWhy community and human connection may be essential parts of heal