McDonald’s is distributing pickle juice to Chicago Marathon runners. They offer two-ounce bottles of 'Pickle Boost' to participants and spectators. This initiative aims to help manage muscle cramps during exercise.

Pickle juice has gained popularity among athletes for its potential to reduce cramping. McDonald’s will offer Pickle Boost at various locations along the marathon route. The salty liquid contains sodium and electrolytes, which may help relax cramping muscles. Read more culture coverage.

Research on pickle juice’s effectiveness is mixed. Some studies show reduced cramp duration, while others find no significant difference. Despite this, pickle juice remains a popular tool among athletes. McDonald’s is testing this trend with Pickle Boost in Chicago. Related: Sawe, Assefa, and Ngetich Nominated for World Athlete of the Year.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.