Kale Just like its leafy green cousin spinach, kale is a ‪#‎superfood‬. For just 36 calories per cup, you get ample amounts of calcium and ‪#‎vitamins‬ A, C and K. But you get way more than that – the vitamins in kale make it a proven cancer-fighter, and though detox diets don’t work, ‪#‎nutrients‬ in kale naturally help cells remove toxins.