Black pepper was once so valuable that it was used as currency and was called 'black gold.'

Ranch dressing was invented by a plumber named Steve Henson while working on a ranch in Alaska.

Coconut oil is high in saturated fat but contains medium-chain triglycerides (MCTs) that are metabolized differently.

A pomelo is the natural ancestor of the grapefruit — grapefruits are a hybrid of pomelo and orange.

The ghost pepper was once used by the Indian military to make non-lethal chili grenades.

Spirulina, a blue-green algae, is one of the most nutrient-dense foods by weight — used by NASA as astronaut food.

Medieval European nobles once ate a dish called 'cockentrice' — a pig sewn to a capon (castrated rooster).

A single saffron flower yields only three stigma threads, which is why saffron is the most expensive spice by weight.

Caviar from beluga sturgeon is among the world's most expensive foods, reaching $35,000 per kilogram.