World Food Security

Define Food Security

When all people at all times have physical and economic access to sufficient safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life

What are the 4 dimensions of food security?

• Availability

  • Domestic crop production

  • import capacity

  • food stocks

• Access

  • Income and purchasing power

  • Transport and market infrastructure

  • Food distribution

• Utilization

  • Care, feeding practices

  • Preparation, Diversity

  • Household distribution

• Stability

  • Weather variability and seasonality

  • Political instability

  • Economic factors

Among people in extreme poverty, what type of food usually represents the highest

percentage of the diet? If such people have an increase in their level of income, what

dietary components do they generally increase expenditures?

Staples usually represent the highest % of the diet in extreme poverty. When people have an increase in their income level, they usually increase expenditures in non-staples such as meats and milk and non-food purchases

Define types of yield and yield gap?

The yield gap is the gap between yield potential and actual yield

Yield potential - yield under perfect conditions

Attainable yield - yield achievable with water supply

Actual yield - real yield with all limiting factors

Describe 5 strategies to feed 9 billion people by the year 2050.

1. Stop deforestation

2. Deliver more nutrition on less land

3. Deliver more food with less resources and chemicals

4. Rethink diets and biofuelds

5. Reduce Waste