I totally recommend watching emiology on YouTube she has a video about how she makes her rat food! I absolutely love the mix she makes if you live in the us like I do she says she uses the banana brunch mix but it is impossible to find in us so I use the tiny friends farm remmie the rat food as the base! I love mixes I use 1/8 cup per rat. I also follow with treats and veggies 3 times a week which consists of a base: spring mix, romaine, spinach. Fruits: banana, strawberry, blueberry, blackberry, and veggies: tomato, bell pepper, cucumber and much more I also like to add pasta, eggs, oatmeal and other things! My rats are very healthy and are doing great on this diet! Stay away from sugary items and also seeds they can be very fattening!