The Dr. Gabrielle Lyon Show Carbs vs. Protein: Which Macronutrient Is Actually More Dangerous to Overconsume?
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Dec 2, 2025 
Nick Barringer, a nutrition and performance expert with a doctorate in kinesiology, joins the discussion on the dangers of excessive carbohydrate intake. They delve into how processed carbs significantly contribute to obesity and metabolic issues in the U.S. Barringer and Dr. Lyon highlight the importance of a balanced 1:1 protein-to-carb ratio and practical meal planning. They also explore strategies for families to reduce processed carbs at home and emphasize the superior nutrient profile of animal protein over plant-based sources, especially for those over 40.
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Carbs Drive Metabolic Dysregulation
- Carbohydrates are more detrimental than protein for most sedentary Americans due to excess intake and metabolic dysregulation.
- The average U.S. intake (~300g/day) equals multiple oral glucose tolerance tests, overtaxing disposal pathways.
Resting Muscle Prefers Fat Over Glucose
- Resting skeletal muscle primarily burns fatty acids and uses very little glucose at rest.
- Sedentary people often exceed muscle glucose disposal capacity, causing excess glucose to be handled by insulin and fat storage.
Start With 100g Carbs And Plate Structure
- Start with ~100 grams of carbohydrates daily and adjust up or down based on activity and tolerance.
- Structure plates as one-third protein, one-third fruits/vegetables, one-third starchy carbs.
