6 Evidence-Based Ways to Manage Gas (and 1 That’s Making It Worse) episode artwork

EPISODE · Aug 9, 2026 · 21 MIN

6 Evidence-Based Ways to Manage Gas (and 1 That’s Making It Worse)

from The Habit Healers · host Laurie Marbas, MD, MBA

Why do beans cause gas, and why does some gas smell terrible while other gas has no odor at all? Those are two different questions with two different answers, and confusing them is why most gas remedies fail.In this episode I break down what your gut is actually producing. Roughly 99% of intestinal gas is odorless, and the volume that comes from beans, fiber, and resistant starch is the product of healthy bacterial fermentation. The smell is something else entirely. It comes from hydrogen sulfide, made when gut bacteria break down sulfur-containing amino acids that are far more concentrated in animal protein, eggs, garlic, onions, and cruciferous vegetables than in legumes. I also explain why sugar and fructose malabsorption can make gas both louder and worse smelling, what the feeding studies show about how quickly the gut adapts to beans, and why reaching for Beano every day may work against the blood sugar and gut health benefits you chose beans for in the first place.What you’ll learn:* Why bloating after eating beans usually fades within two to three weeks of consistent intake* The difference between managing gas volume and managing gas odor, and which remedies target which* Which foods actually drive smelly gas, and what to cut back on before a flight or a long meeting* How alpha-galactosidase enzymes affect blood sugar and short-chain fatty acid production* What a cup of legumes a day did to hemoglobin A1c in adults with type 2 diabetes* The gas symptoms that mean it’s time to call your doctorDr. Marbas Substack Article: https://drlauriemarbas.substack.com/p/6-evidence-based-ways-to-manage-gasCheck out the Habit Healers Community: https://www.skool.com/habithealers/about Get full access to The Habit Healers at drlauriemarbas.substack.com/subscribe

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6 Evidence-Based Ways to Manage Gas (and 1 That’s Making It Worse)

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