How much meat in the diet?

A friend recently e-mailed me about the recent NPR report by Allison Aubrey: We Evolved To Eat Meat, But How Much Is Too Much?. I responded with a few quotes from Dr. Cordain's most recent book The Paleo Answer: 

In a 2010 meta analysis, scientists from the Harvard School of Public Health reported that red meat consumption was not associated with either heart disease or type 2 diabetes, whereas eating processed meats resulted in 42 percent greater risk for heart disease and 19% greater risk for type 2 diabetes.

If you are faithful to the basic principles of the Paleo Diet, consumption of saturated fats within the range of 10-15% of your daily calories will not increase your risk of heart disease.

Remarkably, computerized dietary analyses from our laboratory show that despite their high meat content, modern-day Paleo diets actually contain lower quantities of saturated fats than are found in the typical U.S. diet.

Stay away from saturated fats in processed foods. These artificial concoctions carry the baggage of refined grains, sugars, vegetable oils, trans fats, dairy, salt, preservatives, and additives that are definitely not good for our bodies. The saturated fats you consume from grass-fed beef, poultry, pork, eggs, fish and seafood will not promote heart disease, cancer, or any chronic health problems.

Also, here is a real life case to consider:

Joseph finally quit grains to lower his bad cholesterol