Cameron Borg, MSc, is a science writer and host of the Ricci Flow Nutrition Podcast, with a Master's degree in Medical Science majoring in Nutrition from The Karolinska Institute in Stockholm, Sweden, where he completed his thesis with the Zubarev lab on biological isotope fractionation.

He explains that tissues across species appear to regulate their carbon-13 and nitrogen-15 content toward a preferred set point. This challenges ecology's long-held "static delta" assumption. He also explains how C4 sugars from corn and cane leave a detectable carbon-13 signature in human red blood cells, and why synthetic supplements may differ isotopically from natural forms. We also discuss the limits of the calorie in complex systems, the Energy Resistance Principle, questions about ATP's "high-energy" bond, and how shade, near-infrared light, and blue twilight shape the light signals your body receives. You'll come away with a systems-level view of nutrition and light, plus practical ideas for aligning your environmental signals.

FULL SHOW NOTES: https://docs.google.com/document/d/10Oonu70xuSpgM82TKQt4q5fnEr19N-HlBsu-0KeD1Kk/edit?usp=sharing

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• Substack: https://ricciflow.substack.com
• Instagram: https://www.instagram.com/ricciflownutrition/
• Podcast/YouTube: https://www.youtube.com/@RicciFlowNutrition
• Website: https://www.ricciflownutrition.com

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Timestamps:

00:00 Intro

02:51 Cameron Borg

04:07 The Journey of Understanding Science; Zubarev lab Experience

09:14 Sponsor: Daylight Computer Co.

10:32 The Subjectivity of Science

15:18 Isotopes 101, Isotopic Ecology, Homeostasis, Tissue Specificity

24:41 Deuterium and Its Interactions with Other Isotopes

33:21 Isotopic Distribution Among Different Foods

37:12 Supplements, Isotopic Composition, and the Complexity of Life

41:13 Rethinking the Calorie: Emergent Parts, Complicated vs. Complex

45:04 Applying the "Calorie" From a Complicated to a Complex System

47:41 Weight Management and The Energy Resistance Principle

50:42 Weight Loss: Eating Less Food Reduces Energy Resistance

54:08 Understand Signal Coupling For Health

59:41 Signal Hierarchy vs. Heterarchy

01:00:28 The Role of Sunlight in Health

01:00:53 Sunlight

01:02:12 ATP May Not Have The "High-Energy Phosphate Bond"

01:07:59 Human Light Harvesting For Biological Energy

01:14:13 Light Spectrum Under Shade

01:18:28 Blue Light: Rethinking Nighttime Light Exposure

01:27:06 Closing Thoughts: Return to Nature

01:30:33 Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Social Media, Substack Newsletter

In this episode, my guest is Dr. Roger Seheult, MD, is a physician quadruple board-certified in internal medicine, pulmonary disease, critical care medicine, and sleep medicine, an Associate Clinical Professor at the University of California, Riverside School of Medicine, an Assistant Clinical Professor at Loma Linda University, and the co-founder of MedCram.

Today, he explains why vitamin D levels strongly predicted COVID-19 outcomes while vitamin D supplementation largely failed to reproduce the benefit, and makes the case that vitamin D is a marker for sunlight exposure rather than the primary mechanism behind it. He describes the near-infrared portion of sunlight which penetrates through the human body, and the hypothesis that it stimulates melatonin produced inside mitochondria, where it acts as a local antioxidant. We discuss randomized trials of infrared light in hospitalized and ICU patients, why greenery reflects infrared while concrete absorbs it, the Green Heart Louisville tree-planting trial, evidence that bright light at night predicts higher mortality, the NEWSTART framework, the Adventist Health Study, and published research on faith, forgiveness, and health.

FULL SHOW NOTES: https://docs.google.com/document/d/1uJxnUa3ifCtHbE11v3iQwgTD1-nQD90-PttuS5NN640/edit?usp=sharing

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About this guest:

Med Cram: https://www.medcram.com/

YouTube: https://www.youtube.com/channel/UCG-iSMVtWbbwDDXgXXypARQ

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Academic Profile: https://llu.edu/academics/faculty/seheult-roger/education

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Timestamps

00:00 Intro

02:29 Dr. Roger Seheult

02:59 Dr. Seheult's Love for Science and Medicine

10:41 Pillars of Health, "NEWSTART"

13:11 Sunlight, COVID, Vitamin-D Paradox, Dr. Seheult's Clinical Experience

17:08 Extra-pineal Melatonin, Antioxidant, COVID, ACE2 Receptor, Red Light

18:50 Bringing Patients Outside in Sunlight

20:05 Sponsor: Solius

25:14 Melatonin, Infrared Light

27:13 Heliotherapy, Sunlight in Modern Hospitals, Dr. Rollier, John Harvey Kellogg

33:18 Mitochondria, Long-Wavelength Light, Metabolism, Light Penetration Depth

36:03 Greenery, Infrared Light Bath, Longevity, New Data, MiEye

42:29 Audience Questions

42:41 Sunlight on Psychological Health

43:47 Artificial Light at Night, Longevity, Mortality

47:32 Cloud Coverage, Light Exposure

49:40 New Paper Being Published with Dr. Seheult, Dr. Jeffery, Dr. Fosbury, & Zimmerman

50:37 Nutrition

53:28 Adventist Health Study, Plant-Based Nutrition, Mechanisms of Action, High Protein

01:01:15 Trust: The Science-Backed Health Benefits of Faith

01:19:28 Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Social Media, Substack Newsletter

In this episode, my guest is Dr. Sean Cain, PhD, a Harvard Medical School-trained expert in the impact of light on the human circadian system, a Matthew Flinders Professor at Flinders University, and Co-Founder and CEO of Circadian Health Innovations.

Today, he discusses how people differ more than fiftyfold in how sensitive their circadian systems are to evening light, that nearly half of modern homes are bright enough at night to suppress melatonin by fifty percent, and that most of us have no conscious awareness of any of it. We discuss the large observational studies he and his team have published linking bright days and dark nights to depression, type 2 diabetes, cardiovascular disease, and mortality, as well as his research on impaired light sensitivity in depression and why the amplitude of your circadian rhythm may matter more than its timing. We also discuss MiEye, the wearable light sensor his team developed, and practical changes to home and daytime lighting that anyone can make tonight.

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Timestamps

00:00 Intro

03:54 Dr. Sean Cain

04:42 Dr. Cain's Love for Science and Research

10:25 Understanding Circadian Rhythms: Anatomy and Function

10:56 Setting the stage: Circadian Biology, Rhythms, SCN, ipRGCs

16:20 Light, Circadian Entrainment, Mechanisms

19:57 High Sensitivity and Interindividual Variability in the Response of the Circadian of the Human Circa

22:02 Individual Sensitivity to Light and Circadian Disruption

27:22 Home Lighting, Sunset, LEDs, Fluorescents, Incandescents

27:37 Home Lighting and Its Effects on Circadian Health

33:46 Tools: circadian friendly home lighting

39:24 Population health outcomes; UK BioBank

39:29 Psychiatric Disorders

47:52 SPONSOR: Brighter Lamp

49:34 The Link Between Light Exposure and Mental Health

01:04:18 Light Exposure and Longevity: Key Findings

01:09:45 The Importance of Daylight for Health

01:17:41 Understanding Circadian Rhythms and Light Exposure

01:17:52 The Impact of Light on Mood and Self-Perception

01:23:39 Innovations in Circadian Health: My Eye Device

01:34:15 Jet Lag Management and the Jet Lag App

01:39:09 Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Social Media, Substack Newsletter