A common guideline for portion sizes is the use of the "plate method," which suggests filling half the plate with fruits and vegetables, a quarter with whole grains, and a quarter with protein sources. This visual concept aids in balanced meal preparation, ensuring that individuals receive a variety of nutrients. Guidelines encourage mindful eating, helping individuals recognize appropriate serving sizes and prevent overeating. Moreover, consulting official dietary recommendations can support individuals in managing their portions effectively, contributing to overall health and well-being.