Oat milk is a vegetable drink made from ground oats and mixed with water. It is often used as an alternative to cow's milk by people who are intolerant to lactose or who follow a vegetarian or vegan diet. Oat milk has a smooth and creamy texture and a soft and slightly oat flavor. It is often used in smoothies, cereals, hot drinks and pastry recipes. Oat milk is rich in vitamins and minerals, in particular vitamin B1 and magnesium. It also contains dietary fibers and vegetable proteins, making it a nutritious alternative to cow's milk. However, it does not contain as much protein as cow's milk and it does not provide the same amount of vitamin B12, it is therefore recommended to complete it with other sources of protein and vitamin B12 if you follow a vegetarian diet or vegan.