Officially, Vietnam is an atheist state. Despite this, many of its citizens are religious. The three main religions in Vietnam are Buddhism, Taoism, and Confucianism. Sometimes, they are grouped together as one religion called the three teachings or "tam giáo". According to many studies, 70-90% of Vietnamese people are "tam giáo". 8% are Christians (mostly Roman Catholic) and 1-2% practice indigenous, animist religions including Hinduism. About 1% are not religious but have a strong Buddhist influence in their life.