The main phenylketonuria treatment is a strict diet with very limited intake of phenylalanine, which is mostly found in foods containing protein.

CNN: Phenylketonuria (PKU)

The dominant explanation of Alzheimer's disease contends that the massive brain cell death is due to the buildup of plaques containing a protein called beta amyloid built up in the brain.

FORBES: Hope Mixes With Doubt For Alzheimer's

Tofu is protein-rich with four ounces containing 9 grams of protein.

FORBES: The Triumph Of Tofu

Whole grains are more than just starch, containing up to 25% of other goodies, including protein, fiber, and added healthy omega-3's, along with a complex mixture of vitamins, minerals, and other micronutrients.

CNN: A family's guide to healthy food substitutes

He and his group confirmed this with a protein known as acylphosphatase, which they placed in a solution containing a chemical called trifluoroethanol.

ECONOMIST: Folding stuff

Products containing cooked and processed eggs such as bread, cake and other baked goods often contain more egg protein than influenza shots.

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