What Really Happens to Food When You Eat It? Your Complete Nutrition Roadmap episode artwork

EPISODE · Sep 15, 2025 · 16 MIN

What Really Happens to Food When You Eat It? Your Complete Nutrition Roadmap

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

In this episode, I dive deep into the fascinating journey of food through our digestive system, exploring what really happens from the moment I take a bite until it leaves the body. I break down the different types of molecules we eat every day—carbohydrates, proteins, fats, vitamins, and minerals—and explain how they transform inside us. I’ll share how proteins help build muscle, why fiber is key for gut health, and what makes some meals keep you energized while others cause you to crash.My goal in this episode is to help you better understand your body’s nutritional needs while demystifying the complex process of digestion, starting from the very first sight and smell of food. Come along with me as I follow a bite of food through the incredible assembly line of our digestive system!Here is the link to the Substack article: https://drlauriemarbas.substack.com/p/what-really-happens-to-food-whenA Big Thank You To Our Sponsors:If you want the best supplement to help you on your plant-based journey, you have to try Complement: https://lovecomplement.com/?aff=62If you are over the age of 50 and want to improve your body composition, build lean muscle (combat sarcopenia), build stronger bones (to combat osteoporosis), and you want to feel your best, I highly recommend exploring the life-changing coaching offered at https://www.fitvegancoaching.com/ Their personalized, whole-food, plant-based approach helped me lose 7% body fat, gain lean muscle, and even improve my running time—all while feeling energized and healthy. Get full access to The Habit Healers at drlauriemarbas.substack.com/subscribe

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What Really Happens to Food When You Eat It? Your Complete Nutrition Roadmap

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This episode was published on September 15, 2025.

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In this episode, I dive deep into the fascinating journey of food through our digestive system, exploring what really happens from the moment I take a bite until it leaves the body. I break down the different types of molecules we eat every...

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