By now, the “snackification” of America is well chronicled. Three square meals a day have given rise to more but smaller eating occasions. Even when they haven’t, Americans feel they have a right to snack in between. And the rest of the world is following suit. As a result, the big food companies – and not just the big snack companies – are paying a lot of attention to this growing, broadening category. Campbell Soup in 2017 bought Snyder’s-Lance. That same year, Hershey acquired Amplify Brands (www.amplifysnackbrands.com), maker of SkinnyPop. Kellogg long ago snagged Pringles. Mondelez was spun off from Kraft in 2012 as a pure-play snack company. “Snack” can mean almost anything short of a full meal, but the core remains salty snacks. Potato chips still reign, accounting for 25 percent of all sales, according to Market Research Reports (www.marketresearchreports.com), followed by corn and tortilla chips at 20 percent and roasted nuts and seeds accounting for another 20 percent. In addition to those, SNAC International, formerly the Snack Food Association, includes such categories as: pretzels, popcorn, crackers, cookies, bars, pork rinds, cor...