You have a secret health ally living inside you — trillions of microbes that do far more than aid digestion. Your gut microbiome produces neurotransmitters, supports brain function, boosts immune health, improves insulin sensitivity, and even plays a role in weight management. Here are seven simple ways to optimize it.
1. Eat More Fiber
Fruits, vegetables, legumes, and whole grains feed the beneficial bacteria in your gut, helping them thrive and multiply.
2. Include Fermented Foods
Kimchi, sauerkraut, pickles, and miso are natural sources of live probiotics that directly support a healthy microbiome.
3. Enjoy Prebiotic Foods
Garlic, onions, blueberries, and bananas provide the nourishment beneficial bacteria need to flourish.
4. Stay Hydrated
Drinking plenty of water helps support an environment where healthy gut bacteria can thrive.
5. Limit Processed Foods and Sugar
These can be harmful to the gut microbiome and disrupt the balance of beneficial bacteria.
6. Exercise Regularly
Physical activity has been shown to promote a more balanced and diverse microbiome.
7. Use Antibiotics Cautiously
Limit antibiotic use when possible, and pair any necessary antibiotic course with probiotics to help protect gut flora.
Optimizing your microbiome is one of the simplest, most foundational steps you can take for whole-body health — from digestion to brain function to blood sugar control.
For more natural health strategies, download the free eBook Health Secrets at club120.shintanimd.com.
About Dr. Terry Shintani, MD, JD, MPH
Dr. Terry Shintani is a Harvard-trained physician and nutritionist, named a Living Treasure of Hawai’i and recipient of the U.S. Secretary of Health and Human Services Award for Excellence. He is the creator of the Peace Diet and the landmark Waianae Diet — published in the American Journal of Clinical Nutrition and cited over 137 times — and the author of 16 books on natural health and nutrition, drawing on more than 35 years of clinical practice in Honolulu, Hawaii.
Learn more about Dr. Shintani’s work and recognition: NLM Native Voices
Sources:
- NIH — The Human Microbiome and Health
- PubMed — Gut Microbiota, Insulin Sensitivity, and Metabolic Health
- CDC — Gut Health and Chronic Disease Prevention