Prevalence and Determinants of Unhealthy Food and Beverage Consumption Among Children Aged 6-23 Months in Mekelle, Northern Ethiopia.

International health authorities, including the World Health Organization, advise against infant consumption of unhealthy foods and beverages (UFB)-products high in sugar, salt, and unhealthy fats but low in micronutrients. Despite global evidence of rising UFB consumption among children, data from post-conflict, low-income settings like Mekelle remain limited. This cross-sectional study assessed UFB consumption among 567 children aged 6-23 months in three randomly selected health facilities in Mekelle, northern Ethiopia, following the 2020-2022 war. Caregiver-reported 24-h recall revealed that 71.8% of children consumed at least one UFB, with sugar-sweetened beverages being most common (62.9%), followed by sweets (41.8%), soft drinks (18.2%), and fried foods (9.2%). UFB consumption increased with age, peaking at 81.1% among 18- to 23-month-olds. Compared to children aged 6-11 months, those aged 12-17 months (Adjusted Odds Ratio (AOR): 2.3, 95% CI: 1.46-3.64,  < 0.001) and 18-23 months (AOR = 4.14, 95% CI: 2.36-7.26,  < 0.001) had significantly higher odds of UFB consumption. Children from high-income households were 51% less likely to consume UFBs than those from low-income households (AOR 0.49, 95% CI: 0.28-0.87,  0.014). Birth order influenced intake, with third/later-born children nearly four times more likely to consume UFBs than first-borns (AOR: 3.78, 95% CI: 1.19-11.98,  0.024). Larger household sizes showed protective effects, with four-member (AOR: 0.31, 95% CI: 0.10-0.96,  0.04) and five- to eight-member households (AOR: 0.28, 95% CI: 0.09-0.87,  0.028) having lower consumption than smaller households. The high UFB consumption in postwar Mekelle poses public health risks, particularly among older children and those from low-income households. Targeted nutrition education, stricter UFB regulation, and improved access to healthy foods are essential to address this issue and promote healthier feeding practices.