The Amazing Microbiome: A Microscopic Ecosystem Within Our Bodies
by Christine Toomasi, ND, Education and Research for Nutraceuticals Corporation
The microbiome is a unique, microscopic ecosystem residing within our bodies. In humans, the microbiome consists of all microorganisms, their genetic material, and the associated environment they create within a human host. Bacteria, yeast, fungi, archaea, and even some viruses living inside us form a synergistic partnership for our benefit. These “live microorganisms which, when administered in adequate amounts, confer a health benefit on the host” are called probiotics by the World Health Organization.
A growing body of scientific research shows that the microbiome has emerged as a significant factor in maintaining health and fighting disease. While microorganisms can be considered good or bad, they are often allies that live in harmony with the host and provide great benefits. Our microbiome makes up about 1 to 3 percent of the body’s mass, about the same weight as the adult human brain! Microbes and their genes are a key part of the unique fingerprint for every human, animal, plant, and all organic matter on this planet. They hold a profound ability to positively influence the wellbeing of all living creatures on earth.

What do we now know about the microbiome?
1. Diversity exists within healthy microbiome habitats in and on our bodies. Similar to how tropical plants thrive in the tropics and cacti thrive in the desert, our microbes naturally thrive and inhabit specific areas of our bodies. Specialized enteric coatings on capsules and tablets work well to limit disintegration in the stomach and safeguard probiotic viability until they reach the intestinal tract. In addition, it’s important to find probiotic supplements designed for a targeted demographic to account for microbiome habitat diversity.
2. Our microbiome is constantly changing. Many factors can shift the microbial community landscape throughout our lives, resulting in dysbiosis, or an imbalanced microbiome. Factors such as diet, environment, host genetics, early microbial exposure, and even pregnancy have an influence on our microbiome. However, we know our microbiome can be rebalanced by targeted probiotic supplementation and probiotic-rich foods.
3. Researchers from the Human Microbiome Project (HMP) at the National Institute of Health report that microbes contribute about 360 times more genes responsible for human survival than our own human genes contribute.
The microbiome is an integral part of the following aspects of human health:
- Production of essential vitamins like K2, B12, folate and riboflavin (humans do not have the genetic ability to create these vitamins)
- Enhanced immune function
- Glucose levels and metabolic regulation
- Energy extraction from food
- Pathogenic microbe suppression
- Regulation of the gut-brain axis
We have only scratched the surface of this amazing micro world. In the coming years, researchers around the world will make remarkable advances in medicine through greater understanding of the microbiome. What we have recently learned highlights the importance of quality, multi-strain, specialized probiotic support. Opportunities for innovation exist in multiple demographic and condition-specific categories, including: women’s health, men’s health, 50+, weight support, oral support, digestive support and many more categories! This is a truly exciting time for science, medicine, and global health!
Dr. Toomasi is a licensed naturopathic doctor with a special interest in metabolic and digestive health and the human microbiome. She has had articles published in the Natural Medicine Journal, as well as a peer reviewed professional journal.






