Intelligent Medicine Radio for July 4, Part 2: Causes of Excessive Sleepiness

Europeans swelter through historic heat wave—but many resist air conditioning due to ingrained cultural attitudes; Break a sweat to beat the heat; Evidence that aged garlic extract curbs atherosclerosis risk; How to stave off age-related muscle atrophy; Probiotic-infused underwear to nourish the skin microbiome? Niacin augments glioblastoma treatment; Creatine for depression.

Melatonin can reduce chronic pain; Ultra-processed foods are becoming a worldwide scourge; Do biopsies spread cancer? Sauna benefits for staving off dementia; What may cause blood sugars to deteriorate in a heretofore well-controlled diabetic? Causes of excessive sleepiness.

Bone Health Beyond Calcium: Vitamin D, K, Protein, Medications, and Metabolic Risks: Registered dietitian nutritionist Leyla Muedin discusses factors affecting bone health, osteopenia/osteoporosis, and limitations of bone mineral density as a measure of bone strength. She emphasizes optimizing vitamin D via 25-hydroxy D testing (aiming roughly 55–85 and avoiding over 100), ensuring vitamin K for proper calcium placement, and addressing malabsorption from GI conditions, food intolerances, or inflammation. She notes long-term proton pump inhibitor use can impair calcium and magnesium absorption and increase osteoporosis risk. Diet considerations include avoiding overly grain-heavy, acid-forming patterns and ensuring high biological value protein; she also mentions heavy metals affecting bones. Additional assessment includes magnesium and DHEA sulfate, plus resistance and balance training (ideally three times weekly). She highlights research linking hyperinsulinemia/type 2 diabetes/cardiovascular disease to fragility fractures despite normal or higher bone density, proposing carbohydrate restriction, fasting, and ketosis to improve bone remodeling via osteocalcin and mitochondrial function.

Carnivore diet controversiesWhat is a normal oxygen saturation?  Mine has been 92-93 lately?  Is that okay?

I've worked for many years on my feet and had surgery on both knees.  How much glucosamine should I take?Can you discuss oral vs. IV chelation?  How do you determine which is appropriate?How important is nitric oxide, and how can I increase mine?Are there any supplements I should stop taking before getting blood tests?

Cardiovascular Protection Beyond Statins--Nattokinase, Vitamin K2 MK-7, and Clinical Cardio Six: Neil Levin of NOW Foods/Protocol for Life Balance details cardiovascular protection beyond cholesterol-lowering drugs, emphasizing nutrient sufficiency, therapeutic “nutraceutical” dosing, and physician partnership with testing. They discuss nattokinase from fermented natto (typical 2,000 fibrinolytic units/day), describing research on reduced fibrinogen, improved blood viscosity and microcirculation, blood-pressure normalization, and higher-dose data suggesting benefits for arterial thickness and lipids without excessive blood-thinning. They review vitamin K: K1 for normal coagulation (risk with Coumadin relates to day-to-day variability) and K2 for calcium metabolism, highlighting MK-7’s longer half-life and potency versus MK-4 and recommending pairing K2 with vitamin D. Levin outlines PFLB Clinical Cardio Six (D3, L-carnitine, hawthorn leaf/flower, solubilized grape seed extract, CoQ10, MK-7), ingredient sourcing/testing, omega-3 benefits, red yeast rice context, and controversy around vitamin E meta-analyses.

Dr. Hoffman continues his conversation with Neil Levin, the Senior Nutrition Education Manager and a product formulator for NOW(r) Foods and Protocol for Life Balance. 

Urolithin A (Mitopure) and Mitochondrial Renewal--Muscle, Immune, and Skin Benefits: Jen Scheinman, MS, RDN, CDN, Director of Science Communications at Timeline details urolithin A and Timeline’s branded supplement Mitopure. She describes urolithin A’s discovery through pomegranate research and worm studies showing a 45% lifespan increase. She discusses human research including improved walking distance and clinical outcomes in muscle endurance and strength. Urolithin A is presented as supporting mitochondrial health by promoting mitophagy—recycling damaged mitochondria—distinct from other mitochondrial supports like CoQ10 and NAD precursors. They explain most people cannot produce enough urolithin A from foods because only 30–40% convert precursors via the microbiome and it would require about six cups of pomegranate juice daily. Dosing discussed is 500–1,000 mg/day via gummies, capsules, or powder, with effects developing over months. She reviews emerging research on immune aging, preclinical work on brain and neurodegenerative conditions, and topical urolithin A for skin.

Dr. Hoffman continues his conversation with Jen Scheinman, MS, RDN, CDN, Director of Science Communications at Timeline. 

“The quick and the dead”: 80+ “Supermovers” show slowed cognitive decline; Dietary polyphenols help overcome vascular effects of prolonged sitting; Pros and cons of ketamine therapy for depression; Time-restricted eating alters microbiome to promote weight loss; Magnesium—what research reveals about better sleep, stress resilience, and whole-body wellness.