Former NBA star Yao Ming is being sued by Beijing resident Feng Changshun for endorsing a health food product that Feng said misleads consumers, in one of the first consumer rights cases involving a celebrity since a new protection law was enacted in March.

Feng is suing Baxsun Pharmacy, a retail chain in Beijing, for exaggerating the benefits of its fish oil capsules.

Yao, a spokesman for the product, is also being sued. Beijing's Xicheng district court has confirmed that it will hear the case.