Coconut

Three layers, three uses

A coconut is a single drupe with three distinct layers, each serving a different purpose:

1. Exocarp — smooth outer green skin, removed before shipment.
2. Mesocarp — fibrous husk; the source of coir, used for ropes, brushes, and potting mixes.
3. Endocarp — hard brown shell with three “eyes.”
4. Seed — the white flesh (endosperm) and water inside.

What looks like a “nut” is just the inner seed.

Water vs. milk

These are completely different things:

• Coconut water — the clear sweet liquid inside a young (green) coconut. Mostly water with sugar, electrolytes, and faint coconut flavor. Marketed as a sports drink.
• Coconut milk — produced by grating mature coconut flesh and pressing or blending with water. Rich, opaque, fatty. The base of countless curries.
• Coconut cream — the thicker, fattier fraction of coconut milk that separates on top in the can.

A globe-spanning seed

Coconuts famously float and remain viable in seawater for months. Drifting coconuts colonized Pacific island chains long before humans helped them along. Genetic studies suggest two original domestication centers — Southeast Asia and the Indian subcontinent — with humans then carrying them along trade routes to Africa, the Caribbean, and the New World tropics.

The lauric acid question

Roughly 50% of coconut oil’s fat is lauric acid — a medium-chain saturated fat that has been alternately demonized and celebrated in nutrition press over the decades. Most major heart associations advise moderate use; coconut oil raises both HDL and LDL cholesterol, and the long-term cardiovascular implications are still studied.