2. Key Issues
Where did agriculture originate?
Why do people consume different foods?
Where is agriculture distributed?
Why do farmers face economic difficulties?

3. Learning Outcomes
10.2.1: Explain differences between developed and developing countries in food consumption.
10.2.2: Explain the global distribution of undernourishment.

4. Why Do People Consume Different Foods?
Diet
Dietary energy consumption is the amount of food that an individual consumes.
Consumption of food varies around the world, both in total amount and source of nutrients, for two reasons.
Level of development
Physical conditions

5. FIGURE 10-9 DIETARY ENERGY BY SOURCE Wheat, rice, and maize are the three main sources of kilocalories.

6. Why Do People Consume Different Foods?
Source of Nutrients
Developed and developing regions typically differ most in their primary sources of protein consumed.
Developed Countries
Leading source of protein is meat products.
Beef
Pork
Poultry
Developing Countries
Leading source of protein is cereal grains.

7. FIGURE PROTEIN BY SOURCE People get most of their protein from meat in developed countries and from cereals in developing countries.

8. FIGURE PROTEIN FROM MEAT The percentage of protein from meat is much higher for people in developed countries than for those in developing countries.

9. Why Do People Consume Different Foods?
Nutrition and Hunger
Undernourishment is dietary energy consumption that is continuously below the minimum requirement for maintaining a healthy life and carrying out light physical activity.
UN estimates 850 million people in world are undernourished.
99% located in developing countries
Worldwide, the total number of undernourished people has not changed much in several decades.

10. FIGURE DISTRIBUTION OF UNDER NOURISHMENT More than half of the world’s undernourished people are in South Asia and East Asia.

11. FIGURE EXTENT OF UNDER NOURISHMENT Less than 5 percent of the population is undernourished in developed countries compared to 15 percent in developing countries.

12. FIGURE CHANGE IN UNDER NOURISHMENT South Asia has seen the largest increase in number of undernourished people.