Question: how many ounces is a serving of boneless skinless chicken breast?
Answer: The following nutrition information is provided by the USDA for one 3-ounce (85g) serving of boneless, skinless grilled chicken breast. 1﻿ Note that many commercially packaged chicken breasts are much larger than 3 ounces. So if you eat a single breast, you're probably eating more than a single serving.