Multiple reports say whey protein supplies are tightening as demand rises and prices increase, with food manufacturers incorporating whey into a wider range of products. The articles describe whey protein as a widely used ingredient in items marketed for higher protein content, and note that companies are facing shortages amid strong consumer demand. They also report that costs for whey protein have increased significantly, affecting production planning and pricing decisions across the food sector. The coverage frames the issue as supply and market pressure rather than a single-product failure, pointing to the broader challenge of sourcing enough whey protein for current production levels. While the sources emphasize that manufacturers are “putting it in everything,” they do not attribute the shortage to a specific cause in the provided material. Overall, the reporting indicates that both availability and affordability of whey protein are worsening for food businesses, and that this is contributing to higher prices that may flow through to consumers.