Blind Spots | a Chat with Dr. Marty Makary
What this video covers
Johns Hopkins surgical oncologist Marty Makary joins host Spencer on Self-Funded, a podcast for the self-funded health benefits industry, just after the publication of his book Blind Spots. The conversation walks through the book’s central cases of medical dogma — peanut allergies, hormone replacement therapy, the low-fat diet, antibiotic overuse and the microbiome, and unnecessary care — and what they mean for employers who buy health care.
Key points
- Makary recounts the peanut allergy story: a small American Academy of Pediatrics committee recommended in 2000 that at-risk young children avoid peanuts, based on opinion rather than data. He argues total avoidance — contrary to the immunology principle of immune tolerance, the “dirt theory” — sensitized children and drove the epidemic, and he notes a later randomized trial showed early exposure prevents peanut allergies.
- On hormone replacement therapy, Makary says the lead researcher of the billion-dollar NIH Women’s Health Initiative study announced at a press conference that hormone therapy causes breast cancer, even though the study’s own data showed no statistically significant difference; he says the researcher acknowledged to him that the result only “approached” significance. He estimates some 50 million American women were denied HRT as a result.
- On the low-fat diet, Makary blames Ancel Keys’ selective country data, says three giant studies failed to show low-fat diets reduce heart disease, and criticizes the American Heart Association for licensing its heart-check seal to sugary low-fat foods; he notes schools stripped fat from milk and added sugar while obesity rates soared.
- Citing a CDC study, Makary says over 60% of prescribed antibiotics are unnecessary and describes antibiotics as “TNT on the microbiome.” He cites a Mayo Clinic study linking childhood antibiotic exposure to higher rates of asthma, obesity and learning disabilities, with celiac disease almost 300% more common in children who had taken antibiotics.
- Makary cites his own Johns Hopkins survey in which doctors nationwide estimated 21% of medical care is unnecessary — over a trillion dollars — and calls the “appropriateness of care” a giant blind spot, because quality measures only look at complications after care is delivered.
- He describes the Global Appropriateness Measures (GAM) consortium, which measures appropriateness at the individual provider level — for example, individual doctors’ C-section rates in low-risk deliveries, some running at 50–70%. He argues C-section birth seeds a baby’s microbiome with hospital bacteria rather than the birth canal’s, with higher rates of asthma and inflammatory bowel disease, while stressing that C-sections save lives when needed.
- Turning to the benefits business, Makary accuses a large PBM — “begins with a C and ends with an S” — of squeezing his neighborhood’s family-owned independent pharmacy toward closure with withheld payments and monthly buyout offers, and says employers are being “ripped off” on health benefits and should demand honest fiduciary contracts.