Folic acid deficiency and rancid fat have also been suggested as possible causes.

My mother said Gypsies smell like rancid fat and mice.

There was a kitchen in back, where a slovenly cook fried everything in rancid fat.

It was detected among products of rancid fats.

I was drowning in a sea of rancid fat.

Stains that are in fact layers of rancid fat.

Men and women ate oxhide, rancid fat, book covers and shoes.

Auk sniffed; there was a faint stench, as though someone were cooking with rancid fat.

"And I remember the smell of the soup we ate, of the rancid fat it was cooked in," she said.

He shook drops of rancid fat in Cugel's right eye.