The Whey market is defined as the global market for whey, a byproduct of cheese production, which has become a highly valued ingredient in various industries due to its nutritional and functional properties. As the whey market size is estimated to be around $12.8 billion in 2025, the growth outlook for this market is promising, with a projected market forecast of reaching $23.4 billion by 2033, driven by increasing demand from the food, beverage, and nutrition industries, leading to significant industry expansion. The scope of this market includes various types of whey, such as sweet whey, acid whey, and demineralized whey, which are used in applications like infant formula, sports nutrition, and animal feed.