Sugar, Immunity, and the Sweetener Trap If you’ve been around Beyond Health for any length of time, you know that strong immunity begins with staying away from sugar. That’s not ideology—it’s biochemistry. Sugar undermines immune function in two distinct and well-documented ways. How Sugar Weakens Immunity 1. Sugar Blocks Vitamin C Entry Into Immune Cells Glucose (blood sugar) and vitamin C use the same transport pathways to enter cells. Immune cells cannot function without vitamin C—and during an infection, their requirement for vitamin C can increase ten-fold or more. But if glucose levels are elevated, vitamin C is crowded out at the cellular level. The result?An artificial, functional vitamin C deficiency, even if you’re taking supplements. This is one of the primary reasons sugar intake is so damaging during periods of immune stress. 2. Sugar Disrupts Blood Sugar and Oxygen Delivery Large swings in blood sugar—sharp spikes followed by cr…