Feeding The World

What Do You Eat?• Food is defined as…

Any nutritious substance that people or animals eat or drink, or that plants absorb, in order to maintain life

and growth.

• What factors affect the food that you eat?Availability

Cost

Taste

Nutrition

Time

Culture

Mood Beliefs Skills

What’s Available?• In the United States, the primary crops are:

• Who gets to eat these crops?

Corn

Wheat

Soybeans

Cotton

Hay

Animals!

The Most Important World CropsCrop 2008 Production (tons)Corn 822,712,527Wheat 689,945,712Rice 685,013,374Potatoes 314,140,107Cassava 232,950,180Soybeans 230,952,636Sweet Potato 110,128,298Sorghum 65,534,273Yams 51,728,233Plantains 34,343,343

Nutrition

• Carbohydrates • Sugars and starches metabolized by cellular

respiration to produce energy.

Your food is composed of different components that are necessary for your overall health.

• Proteins • Large, complex molecules composed of amino acids

that perform critical roles in body.

• Lipids • Include fats and oils and are metabolized by cellular

respiration to produce energy.• Vitamins and Minerals

What is the difference between…

Undernutrition Malnutrition

Overnutrition

• The number of undernourished people globally is increasing.

1st world problem!

Causes and Effect• Politics and Economics

• War and natural disasters move people from their available food sources.

• Lack of food can also lead to instability in a country.

Causes and Effect• Competition

• The rising consumption of livestock has required the diversion of grain products.

10% of energy is lost to the primary

consumer.

Causes and Effect• Food Distribution

• There is enough food to feed everyone but not everyone has access to it.

Access is limited by poverty!

How Far Can A Dollar Go?Let’s See What It Is Like To Live In Poverty