The Model Health Show The Top 4 Things That EVERY Diet Needs to Protect Your Gut Health & Boost Your Longevity - With Dr. Will Bulsiewicz
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Jan 5, 2026 
Dr. Will Bulsiewicz, a board-certified gastroenterologist and bestselling author, dives into the essentials of gut health. Discover the four key compounds every diet needs: fiber, polyphenols, healthy fats, and fermented foods. He reveals why fiber is a 'longevity nutrient' and its role in fostering beneficial gut bacteria. Will also critiques the impact of ultra-processed foods on health and shares tips on reducing plastic exposure. Plus, learn how circadian rhythms affect your diet and the importance of mental health in overall wellness.
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Ultra-Processed Foods Drive Overeating
- Ultra-processed foods dominate supermarkets (~75% of calories) and are engineered to be hyper-palatable.
- Kevin Hall's research shows ultra-processed diets cause people to eat ~500 calories more daily than matched unprocessed diets.
Avoid Additives; Choose Whole Foods
- Avoid excessive exposure to food additives since many lack feeding studies and microbiome safety testing.
- Support stricter regulation and prefer minimally processed whole foods where possible.
Limit Microplastics With Practical Swaps
- Reduce microplastic exposure by using a reverse osmosis filter and avoiding heated or acidic foods in plastic.
- Replace bottled soda with glass sparkling water and small flavor splashes like kombucha.
