Chihuahua pups are going to be growing very fast—with only around 6 months between weaning and the switch to adult food! To make sure your Chihuahua puppy food is giving him enough energy, look for something with about 50 calories for every pound of body mass. Because they’ll need to build bones, muscle, and get that little bit bigger, try to feed them about 28 to 30% protein, and 17-20% fat. You’ll be doing your best friend a big favor if you choose a food that also features veggies, as these are a nice source of the minerals and vitamins that keep them healthy. Don’t forget to give your little one lots of water, too!