Type 1 diabetics often face high insulin costs and resistance, where dietary fats block glucose from entering cells. A study by the Physicians Committee shows a low-fat vegan diet as a solution, restoring insulin sensitivity without cutting carbs. This led to a 28% drop in insulin use and 27% cost savings. Participants also lost 11 lbs and improved their cholesterol and kidney health, proving that plant-based eating significantly boosts both metabolic and financial well-being.