"Sodium caseinate" refers to a type of protein that is derived from milk. It is commonly used as a food additive in processed foods, such as baked goods and dairy products, to improve texture and increase protein content. Full definition
Our coconut milk powder used to contain sodium caseinate as a stabilizer but we decided to switch to one that didn't contain gluten or dairy. (kingarthurflour.com)
Let's take cafeteria - style mashed potatoes (ingredients: potato, maltodextrin, shortening powder, hydrogenated soybean oil, lactose, sodium caseinate diposassium, phosphate, hydrogenated vegetable and / or cottonseed oil, mono and diglycerides, artificial color yellow # 6, sodium bisulfite, milk) and replace them with wholesome food. (civileats.com)
Vegan, Gluten, Soy, Lactose and Dairy Free, Unlike Other Coconut Milk Powders this does not contain Sodium Caseinate or Maltodextrin (realfoodsource.com)