There is a whole subset of people who can't imagine popcorn without a sprinkling of nutritional yeast, which is naturally full of B vitamins that are harder to come by in meat-free diets.
Colored scanning electron micrograph of baker's yeast, conventionally grown in the lab. So far, researchers have been able to synthesize six of the yeast's 16 chromosomes from scratch, and think they may be able to complete all 16 by 2018.
Dennis Kunkel Microscopy/Science Source
Allagash Brewing microbiologist and head of quality control Zach Bodah's favorite microscope picture of Brettanomyces (taken in house). The culture comes from Confluence Ale and is a blend of the Allagash house yeast and Brett yeast.
Courtesy of Zach Bodah/Allagash