It seems that there is a lot of confusion about whether to eat meat or not nowadays. I have always been confused. I was vegetarian for 12 years but felt ill and then went paleo ( high meat and fat) for three years and felt even worse. If you look at this book
http://www.amazon.co.uk/Metabolic-T...6816807&sr=8-1&keywords=metabolic+typing+diet
you can find out what proportion of meat you need to be eating in your diet as, depending on where your ancestors originated from.....
The same is true about dairy products. There are exceptions but certain ethnic backgrounds are more lactose intolerant than others. Generally African genetics is lactose intolerant (with the notable exception of the Masai) As are most Asians (with exceptions for India, and parts of western Asia)