Many have deemed macronutrients—carbohydrates, fats, and proteins—as an effective way to lose weight and fuel for runs, while ensuring your body gets what it needs each day. If you're tracking macros for weight loss, it might be intimidating if you don't have all the facts straight. So if you find yourself asking what should my macros be? You've come to the right place. We spoke with experts to unpack everything you need to know, including why you need macronutrients for better run performance and overall health. Macronutrients: What They Are and How Much You Need The word “macros” is simply short for macronutrients, which refers to carbohydrates, fats, and proteins. “They are referred to as macronutrients because we need them in larger amounts than micronutrients, which include vitamins and minerals,” explains Cynthia Sass , M.P.H., a registered dietitian and performance nutritionist who works in New York City, and Los Angeles, CA.…