It can be found in supplements—including in trendy AG1—and smoothies, such as the Erewhon $21 Kacy Musgraves-collab smoothie, ...

In a small plastic cup, add 2 drops of green food coloring. Use a cotton swab to soak up the food coloring into one end of the swab. Touch the end of the swab to the center of a coffee filter to make ...