the.com/carbs
The macronutrient you crave, demonize, and secretly run on like a tiny biological furnace.
means Carbohydrates: sugars, starches, and fiber your body breaks down into glucose for fast energy.
from From carbo (carbon) plus hydrate (water), since these molecules are literally carbon dressed in water, named by 19th-century chemists.
Brain fuelYour brain runs almost purely on glucose.
Fiber trickIt is carbs your body cannot digest.
Energy densityFour calories per gram, same as protein.