The vivid blue color of a new brand of Dutch soda doesn’t come from food coloring: The startup making the product, called Ful, makes the drink with spirulina, a blue-green algae that gives the soda ...

“Actually, we have Starry,” the counter clerk said. It was early spring of this year, and I was ordering a lemon-lime soft drink. I had asked for Sprite but was told that the establishment, a Pepsi ...