The Dish Diet dishware has already been sized and provides an easy porion control with easy adjustment to next size.
You can purchase these from via Amazon.com
Adjust your portion by shifting to the next DISH SIZE™.
There are four bowls size 20, 15, 10 and 5 and five plates sizes 25, 20, 15, 10, and 6.
Our intent was to get all sizes increments by a single digit but that would mean that there would be 25 plates and bowls in each set. This would not be practical since not everyone will need to use that many sets to shrink their size of portion. Most users will be fine with a five size adjustment.