For most of the history of dairy, whey was the stuff you got rid of - the watery byproduct left after milk becomes cheese, fed to hogs or poured out while the actual product went to market. In 2026, with an entire nation proteinmaxxing its way through GLP-1 prescriptions and 40-gram breakfast bars, the 'cheddar' isn't in the cheese itself: America is now producing record amounts of cheese because that's how you get whey. According to NBC, this has resulted in record-high US cheese production, with processors making more cheese to capture the whey stream and exports absorbing the growing pile nobody specifically ordered. Whey CoolThe demand shock behind all this has been building for two years. Either way, the perception has been enough to send GLP-1 users reaching for protein, and the industry has followed the money.