As promised, today I'll share 3 more questions I answered about gut health during my last IG live this past weekend. 4. Which daily habits promote gut health? One of the things I love about longevity is that the body is all connected. Your sleep, your stress management, your exercise routine, your nutrition โ all of it impacts the body as a whole. So having a lifestyle that leverages all of these pillars is of course the simplest answer. A simple example: a poor night of sleep will mess with your appetite regulation โ you'll feel hungrier than normal and less satiated. It can also increase your cortisol levels, which combined with appetite dysregulation and likely increased stress can lead to bigger insulin spikes, cravings for palatable foods, and reaching for ultra-processed options โ all of which harm the gut. One night won't break everything, but if poor lifestyle choices become the habit, those compound over time. And it's not just the food choices stress leads to โ chronic stress directly alters microbiome composition through cortisol's effect on gut motility and the gut environment itself. So stress management belongs here as a direct gut health lever, not just an indirect one. But here I want to focus on nutrition, because the health of your gut is largely dependent on the health of your gut bacteria. And here the most effective thing you can do is eat well. Healthy gut bacteria feed on fibre, especially soluble fibre. So a diet rich in varied whole plant foods is going to keep them maintaining a good gut environment โ producing beneficial postbiotics, crowding out harmful bacteria, and helping maintain a healthy gut mucus and gut lining, which are essential lines of defence for your whole organism. 5. What's the difference between prebiotic and probiotic? This is a simpler one. Probiotics are live cultures of bacteria. Fermented foods like kimchi, yogurt, sauerkraut, kefir, and kombucha have them, and when we eat those, that live bacteria can temporarily enrich and support our existing gut microbiome ecosystem โ adding variety and shifting the environment in a beneficial direction.