Central Australian Aboriginal · Dietary and Physical Activity Changes: Contemporary...
Transcript of Central Australian Aboriginal · Dietary and Physical Activity Changes: Contemporary...
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Improving Food Supply
Central Australian Aboriginal Communities… and beyond
Amanda Lee • Professor, School of Public Health and Social Work & School of Exercise and Nutrition Science, Queensland University of Technology • Nutrition Consultant, Nganampa Health
ICO2014 19 March 2014
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Improving Food Supply Outline:
• Context: health and country
• Changes in food supply and diet
• Past success
• Recent efforts and outcomes
• Current barriers
• Broader implications
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Improving Food Supply Country
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Improving Food Supply Health
0 1 2 3 4 5 6
Age-standardised death rate
Infant mortality rate
Low birthweight
Cancers
Type 2 diabetes
Cardiovascular Disease
Excess rate relative to non-Indigenous Australians
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Improving Food Supply Traditional Life and Diet
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Improving Food Supply Transitional Diet:
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Dietary and Physical Activity Changes:
Traditional Hunter–
gatherer life
Contemporary life
Physical activity level High Low
Energy density of the diet Low High
Energy intake Adequate Excessive
Nutrient density of the diet High Low
Protein content of diet High Low-moderate
Animal food intake High Moderate
Plant food intake Moderate Low
Carbohydrate intake Moderate High
Complex carbohydrate intake Moderate Moderate
Sugars Low High
Dietary Fibre High Low
Fat Low High
Saturated fat Low High
Alcohol Not available Available
Sodium: potassium ratio Low High
Lee, A and O’Dea, K., Indigenous Australian Nutrition, in Nutrition through the Life Stages, Allen & Unwin (in press)
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Improving Food Supply Past success: Minjilang Survival Tucker 1989-90
Multi-strategy interventions:
Everything possible:
Well-person’s health check
↑ demand for healthy food;
↑ supply of healthy food;
↓ cost of healthy food
↑ application traditional knowledge
↑ infrastructure to support physical activity
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Minjilang Survival Tucker Project
Lee, AJ., Bailey, APV., Yarmirr, D., O'Dea, K., Mathews, JD. (1994), Survival tucker: improved diet and health indicators in an Aboriginal community, Aust J Publ Health 18;277-285.
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Minjilang Survival Tucker Project
Lee, AJ., Bailey, APV., Yarmirr, D., O'Dea, K., Mathews, JD. (1994), Survival tucker: improved diet and health indicators in an Aboriginal community, Aust J Publ Health 18;277-285.
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Minjilang Survival Tucker Project
Lee, AJ., Bailey, APV., Yarmirr, D., O'Dea, K., Mathews, JD. (1994), Survival tucker: improved diet and health indicators in an Aboriginal community, Aust J Publ Health 18;277-285.
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Minjilang Survival Tucker Project Resulted in improvements in anthropometric, haematological and biochemical indicators of nutritional status including: • lower serum cholesterol levels (12%) • increased red cell folate levels (234%) • increased serum pyridoxine levels (157%) • increased plasma ascorbic acid levels (252%) • lower systolic (8%) and diastolic (7%) BP • normalisation of haematological indices • normalisation of BMI • normalisation GTT
Lee, AJ., Bailey, APV., Yarmirr, D., O'Dea, K., Mathews, JD. (1994), Survival tucker: improved diet and health indicators in an Aboriginal community, Aust J Publ Health 18;277-285.
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Minjilang Survival Tucker Project
Lee, AJ., Bonson (Bailey), APV., Yarmirr, D., Mathews, J., O'Dea, K. (1995). Sustainability of a successful Aboriginal community-based nutrition project. Med J Aust 162:632-635.
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Improving Food Supply
• Facilities: clean, functional, well stocked • Improved transport • Supply of fruit and vegetables • Wholegrain cereals • Refrigerators and freezers • Display and promotion of healthy foods • Increase in variety (84-323 items)
• Price of fruit and vegetables • Display and promotion of unhealthy foods
Central Australian communities 1986-2012
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Improving Food Supply
• Major source of protein and saturated fat now from convenience and take-away foods
• Four fold increase in sugar sweetened beverages (from 10% to 40% total sugar intake)
Store-turnover and bar code sales data 1986-2012
1986 (% energy) 2012 (% energy)
Protein 12 16
CHO 48 45
-sugar 21 22
Fat 40 37
-sat fat 15 18
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Improving Food Supply
1986 2012
Nutrient density of the community diet (% recommended)
0 100 200 300
Thiamin
Riboflavin
Niacin
Vitamin C
Vitamin E
Folate
Vitamin A
Calcium
Iron
Zinc
0 100 200 300
Thiamin
Riboflavin
Niacin
Vitamin C
Vitamin E
Folate
Vitamin A
Calcium
Iron
Zinc
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Improving Food Supply
6% unsaturated spreads and oils
allowance
41% Discretionary energy-dense
nutrient-poor food and drinks, high in
saturated fat, added sugar and/or salt
53% Healthy foods from 5 food
groups
3% unsaturated spreads and oils
allowance
39% Discretionary energy-dense nutrient-poor
foods and drinks, high in saturated fat, added sugars
and/or salt
58% Healthy foods from 5 food
groups
1986 2012
Proportion of total energy of the community diet derived from food categories
Recent outcomes
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Improving Food Supply Current barriers
• Supply and variety of unhealthy foods
• Advertising and promotion of unhealthy foods (TV)
• Price of healthy foods (other than fruit and vegetables)
• Availability of bush foods
• Preparation and cooking
• Traditional food ways
• Community control of food supply
“Society-state market nexus” “Interaction with culture of social collectiveness” Prof S. Ab. ICO2014
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Improving Food Supply
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Improving Food Supply and Nutrition Supply side interventions:
• Retain GST exemption on basic healthy foods • Instore cross-subsidisation (?price elasticities) • Subsidies for basic healthy foods • Income management regulations • Tools and resources to improve store management practices and transport,
stocking and promotion of healthy foods • Local food gardens/traditional procurement projects? • Community kitchens? Cafes/restaurants?
Demand side interventions: • Community-based social marketing • Reduced exposure to marketing of unhealthy foods and drinks • Community food literacy and budgeting programs • Enhanced primary care programs and follow-up
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Improving Food Supply and Nutrition Broader implications
• Need focus on foods- not nutrients or mechanisms
• Need to focus on increasing more healthy foods than fruit and vegetables
• Need to focus on avoiding foods high in saturated fat, added sugar and salt
• Supply and demand both important
• Need economic/fiscal interventions
• Need to do much more than
product reformulation
• Strengthen local food culture
“All the norms have disappeared” “Non functional system” Prof R Uauy ICO2014
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Australian food-based dietary guidelines Systematic literature review Example of a complex research question from the Evidence Report www.eatforhealth.gov.au
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Australian food-based dietary guidelines
Example of entry in the Evidence Report www.eatforhealth.gov.au
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Australian food-based dietary guidelines
Example of entry in the Evidence Report www.eatforhealth.gov.au
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↓ % energy intake from 35% to 10%
↓ ~ 54%
↑~ 460%
↑~ 103%
↑ ~ 40%
↓~ 20% (mainly men)
↑ ~ 40%
↑ ~ 7%
↓~ 30%
↑ ~ 160%
↑ ~ 30%
↑ ~ 350%
↑ ~ 110%
↑ ~ 470%
↑ ~ 90%
↑ ~ 140%
↑ ~ 30%
↓ ~ 40%
↑ ~ 30%
DISCRETIONARY FOODS
high-medium fat milk products
reduced fat milk products
TOTAL MILK PRODUCTS (excluding butter and cream)
fish and seafood
red meats
poultry, fish, eggs, legumes etc
MEAT, POULTRY, FISH, EGGS, LEGUMES & ALTERNATIVES
refined/↓ fibre grains
wholegrain/↑ fibre grains
ALL GRAINS (CEREALS)
Nut/seeds
TOTAL FRUIT
Legumes
other veg
orange veg
green leafy/brassica
starchy veg
TOTAL VEGETABLES
Approximate change in average adult dietary intake to meet modelled
recommended dietary patterns (note care required in interpretation)
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Improving Food Supply and Nutrition
• Eat store foods that are most like traditional bush foods
• Eat bush foods whenever possible • Avoid “junk” • Don’t supply/drink sugary drinks
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Cautionary Tale:
In another Central Australian Aboriginal community in 1980.. or
Cost of improvements to take-away would have been approx $30,000
Now cost of renal dialysis alone in that community is >$1.2 Million / year
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Improving Food Supply Acknowledgements
Questions?
Thank you