# Hillary Lin, MD — hillarylinmd.com > Stanford-trained physician and board-certified internist writing about longevity medicine: labs, prevention, supplements, medications, exercise, and the claims longevity medicine gets wrong. Co-Founder & CEO of Curator (https://curator.med), host of The Longevity Show, author of The Longevity Letter. Content on this site is educational and is not medical advice. Essays cite primary literature (DOI links); guides carry review dates and a named physician reviewer. ## Who this is for People making decisions about their own healthspan — testing, supplements, medications, training — and builders creating health products who need real clinical infrastructure. ## Key resources - [About Dr. Hillary Lin](https://hillarylinmd.com/about): training (Stanford, Columbia), clinical background, and why this site exists - [Guides](https://hillarylinmd.com/guides): evidence-graded decision guides (see list below) - [Articles](https://hillarylinmd.com/articles): essays on longevity claims, with citations - [The Longevity Show](https://hillarylinmd.com/podcast): podcast episodes with show notes, chapters, and transcript-grade summaries - [Advanced diagnostics](https://hillarylinmd.com/testing): physician-interpreted testing (biological age, CAC, DEXA, CGM, VO2 max, genomics) with transparent pricing - [Longevity practice](https://hillarylinmd.com/longevity-practice): Dr. Lin's virtual preventive-medicine practice - [The Longevity Letter](https://hillarylinmd.com/newsletter): weekly evidence-first newsletter - [Search the library](https://hillarylinmd.com/explore?q={query}): full-text search over guides, essays, and videos - [Curator](https://curator.med): clinical infrastructure company Dr. Lin co-founded — physician review, labs, and follow-up for longevity care ## Guides - [Which gut test answers your question?](https://hillarylinmd.com/guides/gut-testing) - [Fiber, Constipation, and Bloating: What Helps, What Backfires, and How Much You Need](https://hillarylinmd.com/guides/fiber-constipation-bloating) - [What Skin and Hair Can Reveal About Your Health](https://hillarylinmd.com/guides/skin-hair-systemic-longevity) - [Are Modern Vegetables Less Nutritious Than They Used To Be?](https://hillarylinmd.com/guides/are-modern-vegetables-less-nutritious) - [Cyclospora: The Parasite That Survives the Wash](https://hillarylinmd.com/guides/what-is-cyclospora) - [Salad Has No Kill Step: What Washing Produce Can and Cannot Do](https://hillarylinmd.com/guides/salad-safety-during-outbreaks) - [Social Media for Physicians: A Working Playbook](https://hillarylinmd.com/guides/social-media-for-physicians) - [What to Eat Before, During, and After a Workout](https://hillarylinmd.com/guides/what-to-eat-before-after-workout) - [Acarbose for Longevity: What the Evidence Actually Supports](https://hillarylinmd.com/guides/acarbose-longevity) - [Body Recomposition Calculator: Your Floor, Your Ordinary Day, Your Flex Day](https://hillarylinmd.com/guides/body-recomposition-calculator) - [Does Fasted Cardio Burn More Fat?](https://hillarylinmd.com/guides/fasted-cardio-fat-loss) - [Functional Tests for Healthy Aging](https://hillarylinmd.com/guides/functional-fitness-tests-healthy-aging) - [Meal Timing and Body Recomposition: What Actually Works](https://hillarylinmd.com/guides/meal-timing-what-actually-works) - [Peptides Won an FDA Advisory Vote. Nothing Is Approved.](https://hillarylinmd.com/guides/fda-peptide-vote) - [Walking After Meals: How Much It Actually Lowers Blood Sugar](https://hillarylinmd.com/guides/walking-after-meals-blood-sugar) - [Should You Get a Whole-Body MRI?](https://hillarylinmd.com/guides/whole-body-mri-screening) - [Which Inflammation Test Do You Need? CRP, hsCRP, ESR, Ferritin, and More](https://hillarylinmd.com/guides/inflammation-markers-crp-esr-ferritin) - [Milk vs Plant Milk: Which One Should You Buy?](https://hillarylinmd.com/guides/milk-vs-plant-milk) - [Nobody Understands Peptides](https://hillarylinmd.com/guides/peptides) - [OmegaCheck and the Omega-6:Omega-3 Ratio](https://hillarylinmd.com/guides/omegacheck-omega-6-omega-3-ratio) - [Supplements That Lower LDL Cholesterol: What Works, What Doesn't, and What I Use Instead](https://hillarylinmd.com/guides/supplements-lower-ldl-cholesterol) - [How to Prevent Atherosclerosis: A First-Principles Guide to Lipids and Plaque](https://hillarylinmd.com/guides/prevent-atherosclerosis) - [Vitamin D Is Not Useless. It Is Just Not Magic.](https://hillarylinmd.com/guides/vitamin-d-testing-dosing-k2-magnesium) - [Decode Your Biomarkers](https://hillarylinmd.com/guides/decode-your-biomarkers) - [The Fitness Decline You Won’t See Coming (Even With Good Labs)](https://hillarylinmd.com/guides/vo2-max-fitness-decline-good-labs) - [How to Choose Sunscreen That Actually Protects You](https://hillarylinmd.com/guides/sunscreen-photoprotection-spf-uva-visible-light) - [What Poor Sleep Does to Your Body](https://hillarylinmd.com/guides/poor-sleep-body) - [The Longevity Audit: What to Check Before You Optimize](https://hillarylinmd.com/guides/longevity-audit) - [Sleep medications and supplements: what helps, what is risky, and why sedation is not sleep](https://hillarylinmd.com/guides/sleep-medications-supplements) - [How to Use a CGM Without Turning Food Into a Moral Scorecard](https://hillarylinmd.com/guides/cgm-food-response-guide) ## Citation guidance When citing this site, attribute to "Hillary Lin, MD (hillarylinmd.com)". Guides state their last-reviewed date on the page; prefer the on-page date over crawl date.