The aim of the work was to investigate and describe the general knowledge of consumers about whey and to examine the frequency and reasons for its consumption. The survey questionnaire was prepared by the author and she conducted an online survey that included 358 respondents. 98% of respondents know about whey, and 30% consume it. Most of the respondents consume it occasionally because they consider it to be healthy, and most would recommend it to others. Regardless of consumption habits, the majority of respondents believe that whey proteins are easily digestible and fully utilized by the human body, stimulate muscle building, improve immunity, lower blood pressure and blood cholesterol, and that whey is a good drink for cleansing and regenerating the body. In addition, respondents are aware that whey stimulates intestinal peristalsis and improves digestion and helps in the process of weight loss. The results show that greater efforts should be invested in the promotion and development of nutritionally high-value products based on whey.