Advantages of visually determining portion sizes are that it is always available, discreet, and requires no cleanup.
Mayo clinic guide to portion control:
Mayo clinic guide to portion control:
We had one batch of spaghetti pasta out, and we asked people how many ounces it was (it was 4 - double the portion). Only about 2% of the population got the answer right.
However I give you mega props for knowing portion control!