SAMA HOOLE: Historical example: Arctic explorers eating pure fat, producing enough metabolic water to survive where liquid water was frozen. Stefansson documented minimal water consumption needed when eating only meat and fat.

The camel's hump stores fat, not water. But here's what textbooks don't emphasise: Camels get water FROM that fat.

Metabolic water. When you burn fat for energy, the chemical reaction produces water as a byproduct.

1 gram of fat burned = 1.07 grams of water produced.

For a… pic.twitter.com/zURMj6eQz8

— Sama Hoole (@SamaHoole) December 31, 2025

The camel's hump stores fat, not water. But here's what textbooks don't emphasise: Camels get water FROM that fat. Metabolic water. When you burn fat for energy, the chemical reaction produces water as a byproduct. 1 gram of fat burned = 1.07 grams of water produced. For a camel with a 40kg hump, that's 40+ liters of water from fat metabolism alone. Basic biochemistry: Fat + Oxygen → Energy + CO₂ + Water Every mammal does this. Including humans. When you burn body fat, you're literally drinking your fat. This is why people on ketogenic diets report decreased thirst. They're generating water internally from fat metabolism. Historical example: Arctic explorers eating pure fat, producing enough metabolic water to survive where liquid water was frozen. Stefansson documented minimal water consumption needed when eating only meat and fat. Camels evolved to maximise this with large fat storage optimised for desert survival. But the mechanism is universal. You carry your own water supply in the form of body fat. Every kilogram burned produces over a liter of water. The camel's hump isn't special adaptation. It's obvious demonstration of biochemistry that applies to all mammals. Your body stores energy in the form that produces its own water supply when burned. Evolution optimised for efficiency: Fat provides 9 calories per gram AND hydration when metabolised. Carbs provide 4 calories per gram and no metabolic water. The camel knows which system works for survival.