With all of our running extra holiday running around, parties, eating out and STRESS, it can be a real gut-punch to our health and vibrancy.
Seriously–our gut needs some TLC this coming season.
In the olden days we used to think of our gut as just that place that processes the food we eat. But now we know so much more–our gut is now linked with mood, overall health and wellbeing.
I think this is a great time of year–before all of the holiday food starts getting dumped in our digestive system–to take pause and get to know this part of our body and how to care for it so it can care for us.
Health Coach Mary Welch joins us for our 88th Episode of Thin Thinking. She shares the steps we can take today to begin to improve our gut health, and beyond. Also check this episode’s show notes for Mary’s free guide to decrease inflammation!
In This Episode, You’ll Learn:
What really is the function of our gut
Foods you can avoid and foods you can consume to help with a better and healthier gut
How having a healthy gut helps with weight loss
Links Mentioned in this Episode
How is your gut — really?
For years, we thought the gut’s only job was digestion. Eat food, digest food, move on. But science now tells a very different story. Your gut plays a powerful role in weight management, mood, cravings, inflammation, and even mental health.
In this Thin Thinking Podcast episode, health coach and oncology nurse Mary Welch explains why improving gut health isn’t just about what you eat — it’s about how your body processes stress, food, and daily habits. From hidden sugars and gut bacteria to stress-driven digestion problems, Mary breaks down what’s really happening inside your body — and how to start fixing it naturally.
If you’ve ever felt bloated, struggled with cravings, dealt with low energy, or wondered why “doing everything right” still doesn’t work, your gut may be the missing link.
This guide walks you through how to improve gut health naturally, using simple, doable steps you can start today — especially during high-stress seasons like the holidays.
How does gut health affect weight, mood, and cravings?
Your gut health directly influences your weight, mood, and cravings because it produces hormones and neurotransmitters that regulate appetite, inflammation, and emotional wellbeing.
Mary Welch explains that the gut is often called the “second brain” — and for good reason. Trillions of bacteria live in your digestive tract, influencing how you process food and how you feel.
Over 90% of serotonin — the feel-good neurotransmitter — is produced in the gut. When gut bacteria are out of balance, it can contribute to:
- Low mood or depression
- Increased sugar cravings
- Difficulty losing weight
- Chronic inflammation
Mary shares that during her own weight loss journey, she didn’t realize her gut was compromised until a coach asked simple questions — like how often she had bowel movements. Going days without elimination had become “normal,” even though it was a clear sign of dysfunction.
Poor gut health doesn’t just affect digestion. It alters hunger hormones, increases inflammation, and creates a feedback loop where unhealthy bacteria crave more sugar — driving behavior that feels out of your control.
If cravings sometimes feel overpowering or out of your control, listen to Episode 228 — 5 Mind Shifts to Stop Binge Eating, where Rita explains how the brain’s survival wiring drives urge-based eating and how to interrupt the binge cycle.
What are the signs of poor gut health?
Common signs of poor gut health often feel “normal” — until they improve.
Mary describes how many people live with symptoms for years without realizing they’re signals of imbalance. These include:
- Bloating or gas
- Infrequent bowel movements
- Brain fog
- Fatigue
- Sugar cravings
- Inflammation or water retention
One major issue is leaky gut, where the intestinal lining becomes permeable. Food particles and toxins leak into surrounding tissue, triggering inflammation and immune responses.
Mary explains it simply: the gut lining is only one cell thick. When stress, sugar, medications, or poor diet weaken it, inflammation follows — often leading to bloating, discomfort, and difficulty managing weight.
How does sugar disrupt gut bacteria?
Sugar feeds harmful gut bacteria, creating cravings, inflammation, and digestive imbalance.
Hidden sugars are one of the fastest ways to damage gut health. Mary points out that many people unknowingly consume large amounts of sugar through foods labeled “healthy,” such as:
- Granola and cereals
- Flavored yogurts
- Bread
- Salad dressings
- Sauces like ketchup and barbecue sauce
- Sweetened coffee drinks
When harmful bacteria thrive, they send powerful signals to the brain demanding more sugar — even after a full meal. This explains why cravings often feel urgent and irrational.
Reducing sugar intake starves harmful bacteria, allowing healthier strains to repopulate and calm inflammation over time.
What foods improve gut health naturally?
Gut-healing foods nourish beneficial bacteria and repair the intestinal lining.
Mary recommends focusing on whole, anti-inflammatory foods, especially those rich in fiber and natural nutrients.
Key gut-supporting foods include:
- Vegetables (especially asparagus, onions, garlic)
- Green or slightly underripe bananas
- Jicama
- Leeks
- Plantains
These foods feed beneficial bacteria and help produce short-chain fatty acids, which fuel gut cells and support healing — especially for leaky gut.
Mary also emphasizes food quality. Highly processed foods and inflammatory oils commonly used in restaurants can worsen gut health. Preparing simple meals at home allows you to control ingredients and reduce inflammation.
What’s the difference between prebiotics and probiotics?
Prebiotics feed healthy gut bacteria, while probiotics introduce beneficial bacteria directly.
Prebiotics are nondigestible fibers that reach the large intestine intact. Once there, healthy bacteria ferment them into compounds that support gut repair.
Probiotics, on the other hand, come from fermented foods that already contain beneficial bacteria.
Mary’s favorite probiotic-rich foods include:
- Sauerkraut
- Kimchi
- Kombucha
Even small amounts can make a difference. These foods help restore microbial balance and support digestion naturally.
How do stress and eating habits impact digestion?
Stress shuts down digestion by keeping your body in fight-or-flight mode.
Mary explains that digestion only works optimally when the body is in a parasympathetic (rest-and-digest) state. Eating while rushed, stressed, or distracted diverts blood away from the stomach — impairing digestion.
Simple shifts that dramatically improve gut health include:
- Sitting down to eat
- Taking a few deep breaths before meals
- Chewing food thoroughly
- Slowing the pace of meals
She also recommends limiting water intake during meals to avoid diluting stomach acid, which is essential for digestion.
What daily habits support long-term gut health?
Sleep, stress management, and rhythm matter just as much as food.
Mary highlights sleep as a major — often overlooked — factor in gut health. Poor sleep disrupts hunger and satiety hormones, increasing cravings and overeating.
Helpful daily practices include:
- Consistent sleep and wake times
- Morning sunlight exposure
- Reducing screen use before bed
- Gentle movement like walking or yoga
- Journaling to lower stress
Together, these habits reduce inflammation, improve digestion, and support sustainable weight release.
FAQ: Gut Health & Weight
How long does it take to improve gut health?
Many people notice improvements in digestion and bloating within weeks, though full healing can take several months.
Can gut health affect weight loss?
Yes. Poor gut health increases inflammation and disrupts hunger hormones, making weight loss more difficult.
Do probiotics supplements work?
Whole-food sources like fermented foods are often more effective and better tolerated.
What’s the fastest way to reduce gut inflammation?
Reducing sugar, eating whole foods, improving sleep, and managing stress together create the fastest results.
Can stress alone cause gut problems?
Yes. Chronic stress alters digestion, gut bacteria balance, and nutrient absorption.
Conclusion
Improving gut health naturally isn’t about perfection — it’s about awareness, consistency, and compassion.
As Mary Welch shows, small shifts in food choices, stress management, sleep, and eating habits can dramatically improve digestion, mood, inflammation, and weight regulation.
When your gut heals, everything works better — your brain, your energy, your cravings, and your relationship with food.
If you found this episode helpful, you might also enjoy these related Thin Thinking episodes: