Serena Williams teams with Factor for new US Open nutrition ad, fans react

Serena Williams returned to Flushing Meadows for the 2026 US Open and simultaneously announced a new collaboration with meal-delivery service Factor. The partnership was promoted through a short X video called "The final countdown," in which Williams eats a microwave-heated meal before the screen cuts to Factor's "Let's Eat Real" slogan. The campaign features a curated line of high-protein, nutrient-dense meals created with input from chefs and registered dietitians.

Social media users offered a mix of amusement and criticism, with some echoing the ad's tagline and others expressing disapproval. Factor responded to the post with a supportive comment and the hashtag #LetsEatReal. This marketing move follows Williams' earlier openness about using GLP-1 drugs and coincides with her mixed-doubles comeback alongside Carlos Alcaraz, who together won their opening match but fell in the quarterfinals.