Generally, an adult human consumes around 1,600 to 3,000 calories daily. But in colder climates, people need to eat more: Keeping our warm-blooded bodies warm requires a lot of energy. It’s so cold in Antarctica that the average person needs to consume 3,200 to 5,000 calories a day (watch out, Michael Phelps). And because the continent is frozen, no food grows there naturally.

So how do the hundreds of scientists and support personnel who visit Antarctica’s McMurdo Station each year stay fed?

Throughout their one-month stay in Antarctica, hosts Caitlin Saks and Arlo Pérez discover the secret sauce of Antarctic cooking from experts at McMurdo’s galley (Hint: Need to reconstitute a meal? Just add cheese! Need to keep that cheese beyond its expiration date? That’s what freezers are for) and scientists at remote research sites. They glimpse the early days of Antarctic food storage at a long-preserved hut from theTerra Nova Expedition that began in 1910.

Along the way, Caitlin and Arlo discover the glory of 24/7 pizza and “freshies,” the cardboard-like texture of a protein bar several years past its expiration date, and the true meaning of “eat your vegetables.”