Optimal Protein Podcast with Vanessa Spina Why I Quit Intermittent Fasting & Lost 13+ Lbs of Fat — What I'm Doing Instead
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Nov 28, 2025 Discover why Vanessa ditched intermittent fasting after years and lost over 13 pounds! She highlights how common fasting benefits are misrepresented and shares new research on protein intake and muscle preservation. Learn about her Protein-Sparing Modified Fast approach that maximizes energy, reduces hunger, and supports ketones for enhanced fat loss. She also reflects on the lifestyle perks of her new routine, including more enjoyable meal times and less social stress. Tune in for an empowering perspective on fat loss and metabolic health!
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Decision To Quit Intermittent Fasting
- Vanessa Spina quit intermittent fasting after nearly a decade because new human research contradicted earlier beliefs from rodent studies.
- She lost over 13 pounds of fat after switching to a new approach that preserved muscle and improved quality of life.
Rodent Data Doesn’t Equal Human Results
- Rodent fasting research exaggerated benefits because mice have tiny bodies, high metabolic rates, and different feeding patterns.
- Human fasting windows produce only modest metabolic changes compared with rodents, so mouse findings don't directly translate.
Prioritize Calories And Protein Over Window
- Don't assume time-restricted eating gives superior fat loss when calories aren't controlled.
- Focus on total calorie intake and adequate protein rather than relying on the fasting window alone.