Food Junkies Podcast Episode 263: Dr. Ignacio Cuaranta - Sleep, Light, and Ultra-Processed Foods in Mental Health
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Jan 9, 2026 Dr. Ignacio Cuaranta, a board-certified psychiatrist with a focus on sleep, light, and food timing, shares groundbreaking insights into mental health. He explores how morning light and nighttime darkness influence mood and impulse control. Cuaranta discusses the dangers of ultra-processed foods, which disrupt emotional regulation and reward systems. He emphasizes the importance of establishing consistent eating rhythms and practical strategies for protecting sleep. The conversation reveals how addressing circadian rhythms can lead to significant improvements in mental wellness.
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Use Time-Restricted Eating Thoughtfully
- Use time-restricted eating (TRE) as a clinical tool and screening method in psychiatry.
- Treat timing as a signal, not noise, and match eating windows to chronotype when possible.
Tame Early-Morning Hyperarousal Gradually
- Stabilize sleep window and reduce evening light, and favor protein and real food earlier to prevent afternoon crashes.
- Slowly reduce hypervigilant HPA activation rather than forcing sudden changes.
Reduce Evening Blue Light Strategically
- Use blue-blocking glasses, lower-intensity warm lights, and focused lamps in the evening to mitigate LED exposure.
- Prefer natural dusk light when possible and reduce ceiling bright lights at night.
