The study examines the impact of Christian fasting on lipid metabolism in adults. Twenty-five participants underwent biochemical testing before and after the fasting period. The results demonstrated a decrease in total cholesterol, low-density lipoproteins (LDL), and triglycerides, as well as an increase in high-density lipoproteins (HDL). The findings suggest that Christian fasting, in addition to its spiritual dimension, may improve lipid balance and promote cardiovascular health through natural dietary modification and physiological self-regulation.