Protein boom tightens whey supply as manufacturers rush to add protein

Rising demand for high-protein foods—fueled by GLP-1 weight‑loss drugs and consumer interest—has strained whey supplies, causing shortages and higher prices; Now Foods has raised whey prices and is cutting discounts, while Glanbia and Agropur are expanding production (Glanbia in New Mexico by 2027; Agropur at several plants) in an effort to calm the gap, though relief is likely months to years away.