The Kuwait Healthy Life Study assessed factors contributing to obesity, oral diseases, and hyperglycemia in school-aged children. The study recruited over 8,000 4th- and 5th-grade Kuwaiti students enrolled in public schools in Kuwait, who were selected to represent each of the six Kuwait governorates. The baseline assessment took place in 2011-2012, when participants were 9 to 11 years old, and they were followed up in 2013-2014 at 11 to 13 years old. In 2019, a subgroup of approximately 350 participants from two of the six governorates of Kuwait participated in a third wave of data collection at the age of 17.