grain

In the latter you can see how, in the 17th Century, the Dutch were using windmills not just to grind grain, but to do things like grind pigments to make paint or saw wood.

But running up the stalks there are small beads - these are the rice grains.

"Take the gain with a huge grain of salt," economists at Wells Fargo wrote in a research note.

He now owns a grain and hog farm near Moscow, Iowa - but he's unsure about its prospects.

Foodwise that's a balanced, holistic diet from the main food groups - fruit, vegetables, grains, proteins and dairy - and not going to extremes.