Like that of all dogs, the Havanese diet will need to have plenty of animal proteins and carbohydrates for energy, vitamins and minerals for digestive and immune health, and omega fatty acids for coat and skin health. This means the best Havanese dog food is the premium dry kind, particularly brands formulated for small breeds. Premium food provides essential nutrients that your Havanese will require to maintain its health in the long term--and inexpensive food simply lacks that nutrition.
The good news is, dogs of this breed don't eat much. The typical adult Havanese, depending on its age, size, and activity level, only needs about 1½ cups of premium dry kibble per day, divided into two meals. Havanese puppy food portions are a bit less: again depending on age, about a cup per day, divided into three meals (not two) until six months of age. For more info on feeding your Havanese from puppyhood through maturity, here's a feeding chart:
Dog AgeDog WeightFood TypeAmountFrequency6-7 Weeks1 lbDry (Puppy formula)3-4 pieces3x/day3 Months2 lbsDry6-8 pieces3x/day5 Months5 lbsDry0.3 cups3x/day8 Months8 lbsDry* (Puppy/Adult)0.6 cups2x/day10 Months+10 lbsDry (Adult formula)0.75 cups2x/day*--Around this time, transition to adult food by first mixing in a bit of adult formula with the puppy formula. Over the course of a week, with each meal add a bit more adult food to the mixture, until the dog is eating it entirely.
If possible, try and stick to the above-listed portions. If constantly overfed (and under-exercised), these dogs will become obese--and a fat Havanese will have joint, breathing, and digestive problems, not to mention a potentially shortened lifespan. You can help control your Havanese's weight by establishing consistent feeding and exercise schedules, by not feeding the dog table scraps, and by not leaving food in the dog's bowl all the time, thereby allowing it to eat anytime it wants. It's better to put the bowl down only at mealtimes, then pick it up a few minutes after the dog begins eating.
If you're worried your Havanese is overweight, give the dog this simple test: run a hand along its side, and if you can't feel any ribs, it's diet time. Reduce the dog's daily food consumption by one-fourth, and add an extra walk or play period to its daily exercise schedule.