An animal activist group wants you to think twice before chowing down on that grilled chicken sandwich. A new video by Compassion in World Farming is urging meat-lovers to learn about "white striping," a muscle disorder affecting chicken breasts. According to a 2013 study published in the Italian Journal of Animal Science, the condition ups fat content by 224% and lowers the amount of protein. Research published in Poultry Science the same year came to a similar conclusion: Fat increased and muscle decreased based on the amount of white striping.
You might have noticed white striping in your meat aisle already. The condition looks like white striations running parallel to the regular muscle. According to a 2016 study by University of Arkansas and Texas A&M, "the severity of white striping has increased in recent years," identifying it in 96% of the 285 birds they tested. More importantly, the condition "negatively impacts meat quality" by affecting marinade uptake and cook loss.