Fish are a fine source of protein, so many people eat them.

They are believed to be a good source of protein.

Find out the best sources of protein for weight loss.

Be sure to include a good source of protein at every meal.

And they are a major source of protein in the oceans.

Fish meal is another available and important source of protein for the industry.

The fish from the river and lake are a source of badly needed protein for the local population.

Fish is a major source of protein in the Japanese diet.

The female uses blood as a source of protein for its eggs.

All those people need to eat, and bush meat is the prime source of protein in the region.