1.   Some three dozen marketed drugs are derived from cattle tissue and organs, and hundreds more contain fractions of cow blood.

2.   This is an American flag made from handkerchiefs and mosquito netting, its red stripes made mostly from cow blood and Mercurochrome.

3.   Cow blood is even more nutritious than meat, containing plenty of eight essential amino acids the human body must obtain through food.

4.   Specialists agree on the nutritional value of cow blood.