What are Gluten Free Pure Fine Oats and how will they benefit my training? Gluten Free Pure Fine Oats are 100% oats that have been milled to a very fine consistency whilst retaining all of their goodness. They do not need to be cooked so can be mixed with cold water or milk making them perfect for adding to a morning protein shake. Gluten Free Pure Fine Oats provide a prolonged high quality energy release making them ideal for your pre-workout shake, especially if you intend to train or compete for an extended period of time. They are an excellent choice for endurance athletes who have high energy requirements and can be used for carb loading.