21.   In an important way, our problems with cholesterol and homocysteine begin with diets rich in animal protein.

22.   In fact, just last year, the American Cancer Society began to recommend limiting animal protein in the diet.

23.   In other words, is it possible to continue on a diet high in animal protein and add soy to it and still attain the same results?

24.   It is an amino acid found naturally in animal proteins like meat and fish.

25.   It is apparently caused by feed supplements contaminated with prion-infected animal protein products from diseased cattle and sheep.

26.   Its levels can rise when people eat a diet heavy in animal protein and few fruits or leafy vegetables.

27.   Shifting to technologies, crops and forms of animal protein that do not guzzle water offers huge potential for raising water productivity.

28.   So they continue to eat the animal protein and have switched from fat-laden cookies and ice cream to fat-free versions.

29.   The experts might have also cautioned Americans about eating too much salt and protein, especially animal protein, which increases the loss of calcium in urine.

30.   The process also unravels animal proteins, making raw meat look pale and cooked.