02/02/2026
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Historical evidence uncovered in JAMA Internal Medicine shows that the sugar industry once paid influential scientists to shift blame for heart disease away from sugar and toward cholesterol and animal fat. In the mid-20th century, as rates of heart disease began rising, internal documents reveal that major sugar groups funded research designed to downplay sugar’s role in inflammation, metabolic dysfunction, and cardiovascular damage. As a result, decades of public health messaging focused almost entirely on fat, allowing sugar consumption to grow without scrutiny.
Researchers found that key studies funded by the industry selectively highlighted data that supported their preferred narrative while ignoring evidence linking sugar to heart stress, insulin resistance, and obesity. This shaped global dietary guidelines for generations, influencing everything from school lunches to grocery products. Many experts believe this delay in recognizing sugar’s impact contributed to modern epidemics of diabetes, fatty liver disease, and metabolic syndrome.
The findings serve as a reminder that scientific integrity must be protected from corporate influence. Today, independent research clearly shows that excessive sugar intake drives inflammation, damages arteries, disrupts metabolic health, and plays a major role in cardiovascular disease.
Understanding this history empowers people to make more informed choices. True heart health depends on focusing less on outdated myths and more on balanced nutrition, whole foods, and science free from industry manipulation.