Intelligent Medicine with Dr. Ronald Hoffman | The Best of High Tech Medicine and Alternative Modalities

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Leyla Weighs In: Exploring the Link Between Food Additives and Type 2 Diabetes May 08, 2026

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Registered dietitian nutritionist Leyla Muedin discusses a Nature Communications study of 108,723 French adults in the NutriNet-Santé cohort (2009–2023) examining long-term exposure to food preservatives and type 2 diabetes. Using detailed dietary records cross-referenced with product/additive databases, researchers identified 58 preservative-related additives and analyzed 17 consumed by at least 10% of participants; 1,131 diabetes cases occurred. Higher overall preservative intake was associated with a 47% increased diabetes risk (49% for non-antioxidant preservatives; 40% for antioxidant additives), with several specific additives linked to higher risk. Leyla questions whether the findings reflect preservatives themselves or the ultra-processed, refined-carbohydrate foods that contain them, emphasizing recommendations to favor fresh, minimally processed foods and limit refined carbs and processed foods.

ENCORE: Q&A with Leyla, Part 1: Second Opinions May 07, 2026

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A case study where a second opinion is necessary
What are your thoughts on the recent news implicating niacin in cardiovascular disease?

ENCORE: Q&A with Leyla, Part 2: Is herpes a risk factor for dementia? May 07, 2026

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What could it mean to get spasms in your sleep? Is this a prediction of Parkinson's?
What is the best general magnesium to use?
What can my brother with diabetes take for recurrent urinary tract infections?
Could my prescribed medications be causing tinnitus?
Is the herpes virus a risk factor for dementia?

ENCORE: Challenging the Conventional Wisdom on Diabetes and Diet, Part 1 May 06, 2026

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Gary Taubes on Rethinking Diabetes: Diet, Insulin, and the History Behind Low-Carb Treatment: Journalist Gary Taubes is author of “Rethinking Diabetes: What Science Reveals About Diet, Insulin, and Successful Treatments.” The book traces diabetes treatment history and argues that carbohydrate restriction was standard care from 1797 through the early 20th century until insulin therapy shifted practice toward drug-centered management and higher-carbohydrate diets. Taubes explains how insulin’s discovery changed dietary priorities, how later technology (radioimmunoassay) revealed that most diabetes is type 2 with insulin resistance and high insulin rather than deficiency, and why giving more insulin can worsen weight gain. They discuss major trials (including ACCORD, ADVANCE, and Look AHEAD) that failed to show benefits from intensive drug-based glucose control, the influence of low-fat guidelines, Richard Bernstein’s role in blood-glucose self-monitoring and low-carb control, controversies about obesity models, ketosis vs ketoacidosis, GLP-1 drugs, and LDL increases on ketogenic diets.

ENCORE: Challenging the Conventional Wisdom on Diabetes and Diet, Part 2 May 06, 2026

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Dr. Hoffman continues his conversation with journalist Gary Taubes, author of “Rethinking Diabetes: What Science Reveals About Diet, Insulin, and Successful Treatments.”

Enhancing Muscle Quality: A Deep Dive into Mitochondrial Science, Part 1 May 05, 2026

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Urolithin A (MitoPure)--Mitophagy, Muscle Recovery, Immunity, and Skin Health: Dr. Brad Currier, clinical trial manager at Timeline, a Swiss biotech company, details urolithin A (MitoPure), a postbiotic derived from pomegranate precursors that most people cannot produce due to microbiome differences. Currier explains MitoPure’s mechanism—stimulating mitophagy to recycle dysfunctional mitochondria—and reviews evidence from multiple clinical trials. He reveals a Sports Medicine study in elite male distance runners showing reduced creatine kinase and lower perceived exertion, suggesting improved recovery, plus trials in middle-aged and older adults showing improvements in strength, six-minute walk test, and VO2 max at 500 mg–1 g doses. They also cover a Nature Aging immune study reporting rejuvenation of stem-like CD8 T cells with improved mitochondrial fatty acid oxidation, ongoing research directions, supplement quality/testing for athletes, and topical urolithin A skincare trials and partnerships, including L’Oréal Lancôme.

Enhancing Muscle Quality: A Deep Dive into Mitochondrial Science, Part 2 May 05, 2026

Show notes

Dr. Hoffman continues his conversation with Dr. Brad Currier, clinical trial manager at Timeline, a Swiss biotech company.

ENCORE: Intelligent Medicine Radio for May 2, Part 1: Breast-Feeding Moms Gain Less Post-Pregnancy Weight May 04, 2026

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Oprah’s new book encourages followers to “free themselves” from “shame and blame” by accessing weight loss meds; Her claim “it’s the obesity gene” is put to the test by twin studies; Study shows brain stimulation with external electronic headset produces weight loss rivaling shots, pills; Ultra-processed food ups daily calorie intake by 500; Breast-feeding moms gain less post-pregnancy weight; Solutions for Myelodysplastic Syndrome; Scientists find hidden weight gain trigger in soybean oil.

ENCORE: Intelligent Medicine Radio for May 2, Part 2: Adequate Sleep May Trump Healthy Diet, Exercise for Longevity May 04, 2026

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Calculators that assess your risk for heart disease miss the boat—half of actual heart attack victims were said to be at low-risk; Why an app could erroneously tell you that you should be taking a statin; New ways to fix a calcified aortic valve; Common amino acid may bust Alzheimer’s plaque, Adequate sleep may trump healthy diet, exercise for longevity; Chinese vegetarians less likely than omnivores to surpass 100; Easily-gobbled “fast food” stokes total daily calorie intake; Common chemicals hike MS risk two-fold; Low-glutamate diet relieves migraines; Fish oil confers substantial stroke, heart attack protection to dialysis patients.

Leyla Weighs In: How Natural Light Supports Metabolic Health and Blood Sugar Control May 01, 2026

Show notes

Registered dietitian nutritionist Leyla Muedin discusses how exposure to natural daylight may improve metabolic health beyond diet and exercise, highlighting a controlled crossover study of 13 adults aged 65+ with type 2 diabetes published in Cell Metabolism. Participants spent 4.5 days in living spaces lit by either natural light through large windows or artificial light, with identical meals, sleep, activity, and screen time; after a 4-week washout they switched conditions. Natural light was associated with more hours of blood glucose in the normal range, less glucose variability, higher evening melatonin, and improved fat oxidative metabolism, suggesting effects on circadian “body clocks” and coordination between central and peripheral clocks. Muedin recommends getting morning light on the face, reducing sunglasses and high SPF use, dimming lights at night, keeping consistent sleep, and spending more time outdoors; she also notes that architecture can limit sunlight exposure.

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