IB Geography • Section F1
Measuring Food & Health
Ways of measuring disparities in food and health between places
Restored from the original AdornGeo Weebly page • syllabus order preserved
Global Patterns in Food & Nutrition
Global patterns in food/nutrition indicators, including the food security index, the hunger index, calories per person/capita and indicators of malnutrition.
Begin by separating food availability from food access, use and stability. The recovered AdornGeo note sheet is paired with live global datasets so students can move from reading an index to describing and explaining a spatial pattern.
- Food security is multidimensional: a country may have enough food nationally while particular households cannot afford or access an adequate diet.
- Daily calorie supply measures food available in the food system, not the exact quantity eaten; household waste and unequal access make the distinction important.
- The Global Hunger Index combines several indicators, while the Global Food Security Index also considers affordability, availability, quality and resilience.
- Malnutrition includes undernutrition, micronutrient deficiencies, overweight and obesity, so one indicator never gives a complete picture.
- Global maps reveal broad patterns, but national averages can hide regional, gender, age and income inequalities.
Build a global food-security evidence profile
- Complete the recovered Global Patterns in Food note sheet while using the live maps below.
- Select three contrasting countries and record calorie supply, undernourishment and index evidence for each.
- Describe the broad global pattern using regions, named exceptions and comparative data.
- Explain why a high national calorie supply does not prove that every household is food secure.
- Finish with a judgement identifying the most useful indicator and one limitation of relying on it alone.
The Nutrition Transition
The nutrition transition, and associated regional variations of food consumption and nutrition choices.
The original ‘What the World Eats’ activity makes diet visible at household scale. Students then connect changing income, urbanisation, food retail and lifestyles to a shift from traditional diets towards more processed food, animal products, sugar, fat and salt.
- Nutrition transition describes a broad shift in diets and activity patterns as societies urbanise and incomes and food systems change.
- The transition is not a simple or universal sequence: culture, price, policy, trade, advertising and inequality create strong regional variations.
- Undernutrition and obesity can coexist in the same country, city or household, producing a double burden of malnutrition.
- Household food photographs are powerful evidence, but they represent one family at one moment and should not be treated as a national average.
Read diets as geographical evidence
- Use the recovered What the World Eats activity to compare two contrasting households.
- Classify visible food by origin, level of processing and likely nutritional contribution.
- Use the protein-supply chart to test whether the household comparison reflects a wider national or regional pattern.
- Construct a flow diagram linking income, urbanisation, supermarkets, advertising, work patterns and changing diets.
- Evaluate the claim that every country follows the same nutrition transition.
Global Patterns in Health
Global patterns in health indicators, including health-adjusted life expectancy (HALE), infant mortality, maternal mortality, access to sanitation and the ratio between doctors/physicians and people.
Health is measured through outcomes, risks and access to services. The recovered measuring-health activity now sits beside live HALE and infant-mortality maps so students can compare indicators rather than memorising isolated definitions.
- HALE estimates years lived in full health, so it adds quality of life to the simpler measure of life expectancy.
- Infant and maternal mortality are sensitive indicators of nutrition, sanitation, education, gender inequality and access to healthcare.
- Access to sanitation measures an important health condition, while physician density measures service capacity; neither guarantees equitable access or good outcomes.
- Rates and ratios permit comparison between differently sized populations, but data quality, definitions and national averages must be checked.
- Strong answers combine pattern, data, exceptions and an explanation of the processes that connect development to health.
Create a health-indicator dashboard
- Complete the original Measuring Health activity and define each syllabus indicator precisely, including its unit.
- Choose four countries from at least three world regions and collect HALE and infant-mortality data from the maps below.
- Add sanitation and physician-density evidence from the linked sources, then rank the countries using more than one indicator.
- Identify one anomaly where the indicators do not produce the same ranking and suggest a geographical explanation.
- Write a short methods note explaining why a composite picture is stronger than one health statistic.
The Epidemiological Transition
The epidemiological transition, the diseases continuum (diseases of poverty to diseases of affluence), and the implications of a global ageing population for disease burden.
The final lesson moves from measuring health to explaining changing causes of illness and death. The recovered activity supports a model that must be tested against real places, uneven development and the growing overlap between communicable and non-communicable disease burdens.
- As mortality falls, the dominant disease burden often shifts from infectious and deficiency diseases towards chronic and degenerative conditions.
- Diseases of poverty and affluence form a continuum rather than two fixed categories; many countries face communicable and non-communicable diseases at the same time.
- Ageing populations increase the prevalence of chronic disease, disability and long-term care needs while changing dependency and healthcare finance.
- The model is useful for comparison but is not inevitable: conflict, pandemics, inequality, policy and environmental change can interrupt or reverse transitions.
Test the transition model
- Complete the recovered Epidemiological Transition activity and annotate the stages of the model.
- Place six named diseases along a poverty–affluence continuum and justify each position.
- Choose one country with an ageing population and explain likely implications for healthcare, labour and family support.
- Find one example of a double disease burden and explain why it challenges a simple linear model.
- Answer the IB-style prompt: Evaluate the usefulness of the epidemiological transition for understanding global health patterns.