Growing up, I always assumed the traditional dog years to human years rule (1 dog year = 7 human years) was solid truth, and that you just follow whatever feeding portion is printed on the back of the bag.

Once I started digging into the actual research while building "My Pet Calculator", I realized how much nuance we miss. A 2-year-old Great Dane is in a completely different life stage than a 2-year-old Chihuahua, and standard feeding guidelines rarely account for how active your pet actually is day-to-day.