People act like mistrust in media, big pharma, and big food came out of nowhere. It didn’t. The record is public. For decades, the nutrition and health establishment pushed claims that were later overturned by their own data.
Trans fats: For ~50 years, partially hydrogenated oils (Crisco, margarine) were marketed as heart‑healthy. By the 1990s, controlled studies showed trans fats increased LDL, decreased HDL, and raised cardiovascular risk. The FDA didn’t ban them until 2015, after estimates suggested they contributed to 20,000–50,000 heart‑attack deaths per year.
Sugar: In 1967, the Sugar Research Foundation paid Harvard researchers to downplay sugar’s role in heart disease and shift blame to fat. Internal documents revealed the conflict of interest in 2016. For decades, official guidance treated sugar as empty calories, even as metabolic syndrome rates climbed from ~5% in 1980 to ~34% by 2012.
Low‑fat diets: The 1977 Dietary Goals pushed low‑fat eating nationwide despite weak evidence. Subsequent meta‑analyses (e.g., 2010, 2014) found no clear link between total fat intake and heart disease. Meanwhile, obesity rates rose from ~13% in 1960 to ~42% today, partly because low‑fat products were loaded with sugar and refined carbs.
Food marketing: The USDA simultaneously promoted public health guidelines and agricultural output. That dual mandate created structural incentives to favor certain narratives: grains, corn syrup, vegetable oils regardless of long‑term health outcomes.
When you stack these data points, mistrust isn’t irrational. It’s a predictable response to decades of authoritative messaging that later proved wrong. And once you see how incentives shaped those narratives: industry funding, regulatory capture, marketing pressure, political lobbying you naturally ask: what current consensus positions are being shaped the same way?