I recently have had to remove peanut butter forever from my diet. I'm not one to eat a lot of protein, so I've often used peanut butter to help out with this issue. However, after realizing how fattening it is, well, the jar is now collecting dust in my pantry. Even my husband can't eat it because he does low carb, so that means no bread. Maybe this jar isn't a total loss though according to this news from Jewelry.com and BBC. From Peanut butter diamonds on display:

Peanut butter is being turned into diamonds by scientists with a technique that harnesses pressures higher than those found at the centre of the earth.

Edinburgh University experts say the feat is made possible by squeezing the paste between the tips of two diamonds creating a "stiletto heel effect". [...]

Professor Malcolm McMahon, based at the Centre for Science and Extreme Conditions at Edinburgh University, is one of the scientists involved.

He said: "Pressure can cause extraordinary changes in all kinds of materials and can create completely novel materials.

"We are currently developing techniques that will create pressures of up to five million atmospheres, much higher than the pressure at the centre of the earth, to find the holy grail of high-pressure physics, the metallic phase of hydrogen.

"If we manage to make metallic hydrogen, the next step will be to make enough to study it in real detail, which would mean using much larger diamond anvils, about the size of your thumb, to squeeze it."