The Science of Gut Health | Dr. Robynne Chutkan

1. Eat a Diverse Plant-Rich Diet

Consume at least 30 different plant foods weekly, including fruits, vegetables, nuts, seeds, whole grains, herbs, and spices, to foster a diverse and healthy gut microbiome. Focus on variety rather than just quantity for optimal microbial health.

2. Minimize Ultra-Processed Food Intake

Drastically reduce consumption of ultra-processed foods, as they are problematic for gut and brain health and linked to increased mortality. Choose foods with recognizable ingredients, ideally those you could find in your own kitchen.

3. Prioritize Regular Physical Movement

Engage in physical activity for at least 30 minutes, five times a week, to maintain healthy gut motility. Regular movement prevents stagnation of digestive products and microbes, which is crucial for a healthy microbiome.

4. Increase Nature Exposure for Gut Health

Spend time outdoors in nature, as exposure to dirt and fresh air replenishes the microbiome and can reduce allergies. Aim for an hour outside daily, or at least open windows to let fresh air into your home.

5. Rethink Acid Blockers for Reflux

Avoid taking proton pump inhibitors (PPIs) as a first-line treatment for reflux, as they disrupt gut pH, imbalance the microbiome, and increase susceptibility to viruses and other long-term health risks. Focus instead on lifestyle modifications to address reflux.

6. Modify Lifestyle to Prevent Reflux

Address reflux by reducing coffee, alcohol, and chocolate intake, as these can cause reflux or open the esophageal sphincter. Also, avoid eating overly large meals, eating too late at night, or consuming too much fat, which slows stomach emptying.

7. Eliminate Artificial Sweeteners

Avoid sugar-free gum and other products with artificial sweeteners, as they disrupt the gut microbiome. These sweeteners can also lead to insulin release and potential weight gain, despite being low or zero calorie.

8. Regularly Observe Your Stool

Turn around and look at your stool daily to monitor its color, width, and consistency (ideally Bristol stool scale 3-5, formed but not hard). This practice provides important feedback on your gut health and overall well-being.

9. Aim for Daily Bowel Movements

Strive for at least one complete bowel movement daily, as this indicates healthy gut function and prevents constipation. Constipation is often defined as fewer than three movements per week, but daily is ideal.

10. Incorporate ‘Three B’s’ for Fiber

Regularly include beans, broccoli (and similar fibrous vegetables like Brussels sprouts, including stems), and berries in your diet. These foods are rich in indigestible fiber that feeds gut microbes and produces beneficial short-chain fatty acids.

11. Practice Mindful and Intuitive Eating

Cultivate mindful and intuitive eating habits to listen to your body’s signals and avoid becoming overly obsessed with ‘healthy’ eating. This approach allows for occasional treats without compromising overall well-being.

12. Increase Home-Cooked Meals

Prepare more meals at home using whole, recognizable ingredients to avoid hidden additives and ultra-processed components often found in restaurant or pre-packaged foods. This gives you greater control over your diet.

13. Review Medications for Gut Disruption

Work with your prescribing doctor to review all current medications, as several may be disrupting your gut health. Identify which ones are absolutely necessary and explore alternatives if possible.

14. Prioritize Diet Over Generic Probiotics

For general gut health, prioritize a diverse, plant-rich diet and lifestyle factors like nature exposure and movement (‘dirt, sweat, veg’) over generic, over-the-counter probiotic supplements. Many off-the-shelf probiotics often lack sufficient live bacteria or effective strains.

15. Consult Doctor for Specific Probiotics

For specific conditions like post-food poisoning, gastroenteritis, or autoimmune diseases, consult a healthcare practitioner to find clinically studied probiotics. These targeted probiotics are more likely to be beneficial than general ones.

16. Opt for Naturally Gluten-Free Foods

If you are gluten intolerant, choose naturally gluten-free foods like potatoes, rice, quinoa, or oats instead of processed ‘gluten-free’ products. Many processed gluten-free items often contain unhealthy emulsifiers.

17. Differentiate Bloat from Belly Fat

To distinguish between belly fat and bloat, measure your abdominal girth morning and evening for several days. Consistent measurements suggest belly fat, while daily variations of a couple of inches indicate bloating.

18. Recognize and Address Incomplete Bowel Movements

Be aware of incomplete bowel movements, where only a small amount of stool is passed, leaving a feeling of more to come. This is a form of constipation that needs to be addressed for optimal gut health.

19. Monitor Stool Odor for Changes

Be aware of your stool’s typical odor and note any significant, unusual foulness, which could indicate issues like consuming too many processed meats or other dietary disruptions.

20. Seek Evaluation for Stool Changes/Blood

Seek medical evaluation for any unexplained changes in bowel habits, stool consistency, size, color, shape, or the presence of blood. These can be signs of serious conditions like colon cancer, especially with increasing rates in younger individuals.

21. Reduce Bean-Related Gas

To reduce gas from beans, take an enzyme like Beano before or after the meal, soak beans overnight with a sea vegetable like kombu, or try different types of beans and smaller portions.

22. Consider Fiber Supplements for Stool Bulk

If dietary fiber intake is insufficient, consider fiber supplements like ground psyllium husk or acacia fiber to help bulk the stool and promote regularity. These can be a helpful aid when diet alone isn’t enough.

23. Use Magnesium for Bowel Regularity

Take a small amount of magnesium in the evening, especially when combined with a fiber supplement in the morning, to aid in laxation and promote a healthy bowel movement. This can help overcome occasional constipation.