ABSTRACT
Background. During COVID-19 pandemic, office worker has spent more than 6-8 hours per day sitting for online working following social distancing policy. Considering the popularity of online ordering and home delivery services, sugar-sweetened beverages (SSB) consumption have increased. However, the link between the types SSB consumption and their BMI was less well documented. 
Objective. To determine the association of the habitual intake (type, frequency, and volume) of sugar-sweetened beverages (SSB) with body mass index (BMI).
Material and methods. A cross-sectional study, 337 office workers were selected according to probability proportionto-size and systematic random sampling. Data were collected using face-to-face interviews on the type, frequency, and volume of sugar-sweetened beverage intake. Samples of sugar-containing beverages were analyzed using high-throughput liquid chromatography/mass spectrometry (LC-MS/MS). The chi-square test was used to determine the relationship of SSB consumption with BMI. Unadjusted binary logistic regression analysis was used to assess the associations between BMI and metabolic diseases. 
Results. Most respondents (56.1%) were overweight (BMI >23 kg/m2). The most consumed SSB was milk tea (e.g., Thai tea and green tea), which was significantly related with BMI (p=0.03). LC-MS/MS analysis showed that sucrose and lactose were the major sugars in milk tea (34.7 g/100mL, on average). 70.6% of the respondents consumed >24 g/day of sugar, which is more than the World Health Organization’s recommendation.
Conclusions. Health control policies and health education, for example warning labels for the reduction of SSB consumption, may urgently be required to promote health in workplaces and prevent SSB-related metabolic diseases.