That often heard expression “an apple a day keeps the doctor away” actually comes with some fast facts attached.

Not only are apples a significant source of integral nutrients—packed with fiber, B vitamins, vitamin C, iron and potassium—they’re a natural source of energy too.

Apples have carbs, used to fuel our bodies. Because they’re high in fiber (about 5 grams for a medium-sized apple), sugar is absorbed slowly, helping provide you with a steady—and largely necessary—stream of energy.

Here’s something else: New Earth’s Project: Mazama liquid shot includes natural apple sweetener in its list of beneficial ingredients. That way, you know you’re receiving the most natural energy available to you. You’re getting it directly from the earth.