"He is now hospitalized in Praram 9 because of diarrhea caused by food poisoning," said Thai government spokesman, TitimaChaisang told reporters.
First female prime minister in Thailand was directly confronted with major problems that plagued his country, was inaugurated in August. The biggest floods in Thailand in 50 years caused hundreds of casualties. Flooding also caused major damage also hit the Thai economy as crippling the largest industrial centers and disrupts the country's tourism sector.
Yingluck struggled to lead the government to prevent flooding downtown Bangkok.
Although until now the center of Bangkok is still survivors of the flood, Yingluck received heavy criticism for being too slow to handle floods.
In addition to the flood problem, the 44-year-old Prime Minister is also criticized for allegedly would provide amnesty for his brother, former Thai PM Tasking Shinawatra, who is now in exile.