And tomatoes represent a sizable portion of the total cost of goods sold for some U.S.-based multinational food manufacturers.
As a food commodity, tomatoes are about 9.4 percent of Campbell Soup's cost of goods sold and 4.1 percent of ConAgra's costs. Other companies with 1 percent or more exposure to tomato costs are Kraft Heinz and J.M. Smucker.
According to the USDA, around three-fourths of the tomatoes consumed by Americans are processed, with sauces the largest use (35 percent) followed by paste (18 percent). That's then followed by canned tomatoes (17 percent) and ketchup and juices (each about 15 percent).
Ketchup alone is a $6 billion business globally, according to Euromonitor.
ConAgra's Hunt's brand is the nation's second-largest ketchup in terms of sales, with a nearly 15 percent market share in 2015, while Heinz is tops with about 62 percent share, according to Euromonitor.
Meantime, U.S. ketchup volumes were down 0.1 percent last year and pasta sauce volumes fell 3.6 percent, according to figures from Euromonitor. The latest Nielsen figures show ketchup seeing unit declines of 4 percent this month and almost 1 percent in the latest year.
There's also weakness in pasta sauce volumes in the latest 52-week period, according to Nielsen data.
Nobody is suggesting Americans are giving up their love of tomato pasta sauce or ketchup on french fries. Yet there's been a general trend by health-minded consumers to eat fewer processed foods and more fresh foods.
"While there has been a recent shift of consumers opting for fresh tomatoes rather than processed tomato-based products, there are growth opportunities for manufacturers," according to Jordan Rost, vice president of Consumer Insights for Nielsen.
"These opportunities are reflected in the rise of multicultural cuisines and gluten-free flours that enable greater consumption of foods like pizza, to the growing, renewed popularity of pasta," he said.