Either of these tests may be used to test your urine for protein.

They looked for other similar proteins and found some in the roots of plants.

Maybe enough to pay for air, water, and protein till you find a way to earn your keep.

Almost a billion people now rely primarily on fish for protein.

The search for such proteins is under way in laboratories all over the world.

A urine test for protein is the only way to identify this problem.

About two billion people, most of them poor, depend on the oceans for protein.

They're looking for foreign proteins, but there's some doubt as to whether the resolution's up to it.

"But laboratory studies indicate that this works for several proteins."

Moreover, a more basic diet reduced the need for protein.