Intelligent Medicine Radio for February 28, Part 2: Are some people more genetically-adapted to the cold?

The MAHA backlash over RFK Jr.’s about-face on glyphosate; Amid the partisan divide, Making America Healthy Again cuts across party lines; New study confirms effectiveness of personalized lifestyle interventions for reversing dementia; After an allergic reaction to the Covid shot, is it safe to take other vaccines? Some GLP-1 users are developing scurvy; Six lifestyle hacks that augment weight loss drugs’ cardio benefits.

Sugar restriction during the first 1000 days of life may slash heart risk decades later; Are some people more genetically-adapted to the cold? While GLP-1 drugs may shrink muscle, new study confirms natural weight loss diets don’t. Should strength assessments be added to routine physicals to forecast risk of dying? For gut health, take your microbiome for a run! Strontium safety and effectiveness; What are dietitians missing about GLP-1 drugs.

Hidden Hunger: The Importance of Micronutrients: Nutritionist Leyla Muedin focuses on the critical role of micronutrients—vitamins and minerals—in overall health. Leyla highlights the global issue of 'hidden hunger,' a deficiency in essential micronutrients that silently affects billions worldwide. She explains the impact of this deficit on immune function, growth, energy metabolism, and chronic disease prevention. The discussion includes key micronutrients like vitamins A, C, D, E, B complex, iron, zinc, iodine, and selenium, and their sources. Leyla underscores the need for dietary diversity, fortification, targeted supplementation, and nutritional awareness to combat this pervasive issue. She also advises on recognizing symptoms of deficiencies and the importance of individualized nutrition plans guided by healthcare professionals.

Integrative Healthcare Symposium highlightsWhat supplements can help combat the side effects of cancer therapy?Will my son's use of Zepbound affect his fertility?

Is what I've been doing for years helpful for achieving autophagy?When you say low carb, do you mean low complex carb or low simple and processed carb?What daily multivitamin would you recommend for a male age 50 plus?Which supplement should I take for elevated triglycerides?

Autism, Functional Medicine, and Personalized Interventions: A Conversation with Theresa Lyons, PhD, a Yale-trained scientist and medical strategist who became an autism expert after her daughter’s diagnosis and now runs AWEtism.net. Lyons describes dissatisfaction with conventional guidance that offers limited drugs for irritability and primarily ABA (Applied Behavioral Analysis), which is insurance-covered, often recommended at 40 hours/week, uses extrinsic rewards, and may help some skill-learning but has controversies and limitations for social development; she contrasts newer approaches such as RDI (Relationship Development Intervention) and PRT (Pivotal Response), which aim to build intrinsic motivation but are typically not covered by insurance. The discussion covers autism heterogeneity, changes in diagnostic categories (e.g., Asperger’s folded into autism), and research including a Boston Children’s Hospital study reporting 37% of children in a cohort lost their autism diagnosis over time (diagnosis based on observation). Lyons addresses debates about rising autism prevalence, noting multiple potential contributors and rejecting single-cause explanations, while citing risk-factor examples such as family autoimmune history and air pollution exposure. She outlines a functional medicine “why” approach using constipation as an example (root causes vs. symptomatic treatment), and emphasizes basic, low-risk steps such as evaluating diet, inflammation, hydration/electrolytes, and blood work for nutrients. Specific topics include gluten-free approaches (mechanisms involving gut permeability, immune burden, and CNS effects), dairy/inflammation, vitamin D deficiency and monitoring, melatonin as a well-studied short-term aid in autism (considered safe for a couple of years in studies) while still seeking underlying causes, and omega-3 fatty acids for focus and inflammation. Lyons explains leucovorin (folinic acid, prescription vitamin B9) as a targeted approach for children with folate receptor antibodies (reported in ~70% of autistic children), discusses the value and cost (~$300) of specialized testing from one U.S. lab, and notes reports of major speech and behavior improvements in responders, with dosing nuances. The episode also reviews evidence and cautions around the microbiome, including fecal microbiota transplant (FDA-approved for C. difficile; discussed as having an ~80% response rate in autism-related studies when gut issues are a key driver, but with major donor/compatibility considerations) and probiotics (some small trials and high costs). Other themes include “clean eating,” organic foods and toxin-load considerations tied to genetic detoxification vulnerabilities, discussion of acetaminophen/Tylenol in pregnancy in the context of glutathione pathways and personalized risk, and using genetics to guide interventions. Lyons warns that analysis of top autism TikTok videos found ~70% were inaccurate or overdramatized, recommending social media only for ideas, not decision-making. She also highlights parent stress, citing emerging research on increased PTSD risk among autism parents, and emphasizes support and community. Lyons advises parents to understand their child’s specific health drivers and match them to appropriately specialized clinicians, noting her curated doctor listings in The Lyons Report.

Dr. Hoffman continues his conversation with Theresa Lyons, PhD, a Yale-trained scientist and medical strategist who became an autism expert after her daughter’s diagnosis and now runs AWEtism.net.

Xylitol, FTC Censorship, and the Oral–Heart Health Connection: Nathan Jones, CEO and founder of Xlear, Inc., makers of xylitol-based nasal and dental hygiene products, and a health freedom advocate, discusses Jones’ ongoing legal battle with the FTC. He addresses the difficulty of making health claims for hygiene products (including toothpaste and nasal sprays), the role of “weasel words” in supplement marketing, and concerns about regulatory double standards versus pharmaceuticals. He also reviews xylitol’s benefits for dental caries and respiratory/ear infections, including references to studies and public-health examples (e.g., Finland and a Belize program reducing dental caries costs), and Jones’ efforts to encourage Utah to implement xylitol gum programs in schools. He contrasts fluoride’s enamel-strengthening approach with xylitol’s effect on the underlying bacterial cause of tooth decay, discusses Utah’s fluoride policy change and claims about fluoride’s limited benefit, and highlights a correlation between poor oral health and cardiovascular risk via inflammation and bacterial translocation into the bloodstream, including pathogens found in atherosclerotic plaque, and links also discussed for dementia and Parkinson’s.  They close with commentary on health advocacy in the “MAHA era,” the challenges of entrenched federal bureaucracy, and Jones’ preference for advocacy groups that teach industry to push back rather than comply.

Dr. Hoffman continues his conversation with Nathan Jones, CEO and founder of Xlear, Inc.

Vitamin D testing is vital for tailoring doses to optimize health—but regulators are conducting a campaign to deny coverage; Can magnesium be taken simultaneously with blood pressure meds? Lifelong learning delays Alzheimer’s onset by 5 years; Your MRI says you have a bum shoulder—but 99% of people show abnormalities even when they have no discomfort; Saunas can help stave off dementia.