I've made this activity using data from the UN FAO. Here is the original article. It makes interesting background reading.

You can download a copy of the activity here.

The answers (teachers can choose when to make these available to students) are here  Food Intake Analysis - Answers 

The data shown below indicates that calorie intake is predicted to rise in all regions over the next twenty years, including MEDCs though more steeply in LEDCs.

Task: Calculate the percentage increase in calories in developing countries and industrialised countries from 1964 to 2030.

Task: Calculate the percentage of the total calories that meat contributes in developing countries in 1964-1966 and is estimated to contribute in 2030. Calculate the percentage change.

Task: Investigate the costs and benefits of meat consumption to a person then answer the following questions.

1. Outline three health benefits of eating more meat.

2. Outline three health costs of eating more meat.

3. Outline three ecological costs as a consequence of a society eating more meat.

4. Explain at least one of these ecological costs.