to warn consumers about the possible health risks of consuming these beverages on a regular basis. Beginning in 1993, Jacobson spearheaded efforts to require that artificial trans fat, a potent cause of heart disease, be labeled on food packages. As evidence of trans fat's harmfulness accumulated, in 2004 CSPI petitioned the Food and Drug Administration to ban the use of partially hydrogenated vegetable oil, the source of artificial trans fat. The FDA banned that oil in 2015, with June 18, 2018, being the effective date to stop using it. He also led efforts to reduce the sodium content of processed foods, such as soups, snack foods, and processed meats. Excess consumption of sodium increases the risk of high blood pressure, heart attacks, and strokes. In addition to publishing several books and reports, CSPI's work led to the FDA's issuing voluntary sodium-reduction guidelines in October 2021. To bring about changes in eating habits, Jacobson advocates higher taxes on unhealthy foods, greater use of warning labels on food and beverage packaging, restrictions on advertising and selling junk foods (“snack foods"), and lawsuits against food producers and retailers whose practices he believes are detrimental to public health. His publicity campaigns and legal actions regarding such harmful ingredients as urethane (a carcinogen) in alcoholic beverages, sulfite preservatives (deadly allergen) in fresh vegetables, wine, and other foods; sodium nitrate and sodium nitrite (sources of cancer-causing nitrosamines) in bacon and other processed meats; olestra (an artificial fat); and acrylamide (a carcinogenic contaminant) in baked and fried foods led to governmental restrictions or voluntary actions to reduce or eliminate those substances. Jacobson led the effort to get "Added Sugars" listed on Nutrition Facts labels. Jacobson stepped down as executive director of CSPI in October 2017 and then, as a senior scientist at CSPI, published Salt Wars: The Battle Over the Biggest Killer in the American Diet.. That book addresses the scientific controversy about the health impact of lowering sodium consumption, industry opposition to government action to lower sodium, and advice to consumers. In 2022, after he resigned from CSPI's board of directors and his position as senior scientist, Jacobson founded the National Food Museum. That nascent institution "explores food in all its dimensions." The museum's exhibits and other activities will focus on the history of the human and American diets, food marketing, ethnic cuisines, farm animal welfare, and, especially, the impact of food and farming on health