The sugar industry paid Harvard scientists to shift blame for heart disease from sugar to fat

How Big Sugar Rewrote the Science of Heart Disease

When you were told to cut fat from your diet, the advice came with a scientific seal of approval. The American Heart Association recommended it. The government built food pyramids around it. Nutritionists lectured about it for decades. What few people knew was that this cornerstone of modern nutrition guidance had been shaped not by independent research, but by a deliberate campaign funded by the sugar industry.

The story begins in the 1960s, when researchers were starting to understand the link between diet and heart disease. Sugar producers saw a threat. Their product was increasingly under scrutiny, and they needed a solution. The Sugar Research Foundation—the industry's own research organization—decided to commission a study that would point the blame elsewhere.

They identified three Harvard scientists: D. Mark Hegsted, Robert McGandy, and Dr. Fredrick Stare. These were prestigious researchers at a respected institution, and their credentials could lend weight to whatever conclusions the industry wanted. According to internal documents uncovered decades later, the Foundation paid them $50,000 in 1967—the equivalent of roughly $600,000 in today's money—to write a review article for the New England Journal of Medicine.

The resulting article did exactly what the sugar industry wanted. It downplayed the connection between sugar consumption and heart disease, while emphasizing the dangers of dietary fat instead. The piece was published in 1967, and it carried all the authority of Harvard and the New England Journal of Medicine. Few readers questioned it. Why would they? It came from one of America's most respected medical institutions.

For decades, nobody outside the industry knew about this arrangement. The scientists never disclosed their financial relationship with Big Sugar. The sugar industry never advertised its influence. The flawed research became the foundation for dietary guidelines that shaped American food policy and personal choices. Low-fat diets became the norm. Food manufacturers reformulated products to remove fat and add sugar as a replacement. Nutrition labeling emphasized fat content. Generations of Americans made dietary choices based on advice that had been secretly purchased by the industry that benefited most from it.