Polynesia • Samoa • Tonga • Tuvalu • Cook Islands • American Samoa
American Samoa has an exceptionally high burden of obesity, diabetes and hypertension within a food system shaped by geographic isolation, U.S. programs, imported products and strong Samoan cultural traditions. It must be distinguished from the independent nation of Samoa: the two share ancestry and culture, but have different governments, health systems, trade relationships and policy options.
Key takeawaysThe 2017–2018 American Samoa hybrid STEPS report estimated overweight or obesity in 93.5% of surveyed adults, diabetes in 33.6% and hypertension in 39.8%; definitions and survey dates must accompany these figures.Local taro, ta‘amu, yam, breadfruit, banana, coconut, vegetables, fish and seafood can support both nutrition and food-system resilience.American Samoa can combine territorial action with USDA school-meal and farm-to-school mechanisms.Samoan CREBRF research is important but does not make higher BMI harmless or make diabetes inevitable.
American Samoa is an unincorporated U.S. territory centered on Tutuila, with smaller inhabited islands including Aunuʻu and the Manuʻa group. Freight costs, limited land, storm exposure and dependence on imported food shape what families can buy. Federal nutrition rules and funding create opportunities, but applying mainland procurement systems to a remote island economy can be difficult.
The 2017–2018 hybrid STEPS report combined survey, interview and measured data. It estimated that 93.5% of adults were overweight or obese, 33.6% had diabetes by the report’s combined self-report and fasting-glucose definition, and 39.8% had hypertension by its combined definition. These results describe that survey period and should not be presented as timeless facts.
Traditional Samoan meals drew on root crops, breadfruit, coconut, greens, fruit, fish, seafood, pork and chicken. The modern environment contains more white rice, refined flour, processed meats, canned products, instant noodles, snacks and sugar-sweetened beverages. Imported foods are essential to island food security, particularly after storms, but the mix and marketing of imports influence metabolic risk.
The practical distinction is not “local good, imported bad.” Frozen vegetables, canned fish without excessive sodium, legumes and other imported staples can improve nutrition. Conversely, a local food can be transformed by frying, added sugar or oversized portions. Policy should favor minimally processed, nutrient-rich foods regardless of origin while rebuilding viable local production.
American Samoa contributed to long-running studies of Samoan body composition, diabetes and cardiovascular risk. The Pacific-enriched CREBRF variant rs373863828 is associated with higher BMI and has complex relationships with fasting glucose and diabetes. A 2022 analysis including adults from American Samoa, Samoa and Aotearoa New Zealand found direct and BMI-mediated effects operating in different directions and concluded that the allele does not disconnect higher BMI from higher odds of type 2 diabetes.
This is why clinical risk must be measured rather than inferred from appearance or ancestry. Blood pressure, fasting glucose or HbA1c, triglycerides, kidney function and liver assessment when indicated provide information that BMI alone cannot. Genetic findings should improve science and reduce stigma—not assign collective destiny.
American Samoa has a strong agricultural-extension tradition through American Samoa Community College and local agencies. Taro, ta‘amu, yam, breadfruit, banana, coconut, fruit, vegetables, poultry and fisheries can shorten supply chains and preserve food knowledge. Historical USDA-supported plans specifically described purchasing local root crops for school meals to reduce reliance on imported potatoes and rice.
Local production faces real constraints: land availability, pests, plant disease, storms, labor, storage, processing and institutional purchasing requirements. Farm-to-school programs work best when growers know projected demand and schools have flexible specifications, food-safety support and reliable distribution.
The American Samoa Department of Education participates in U.S. child-nutrition programs administered with the USDA Food and Nutrition Service. USDA defines farm to school broadly: local purchasing, gardens, taste tests, farm visits and classroom education. That framework can be adapted to Samoan foods rather than copying a continental menu.
Useful measures include water-first cafeterias, limits on sugary drinks, local taro and breadfruit tasting, school gardens, culturally appropriate recipes and transparent procurement targets. Nutrition standards should also consider products sold near schools and foods used for fundraising and celebrations.
American Samoa can usefully be compared with the other U.S. Pacific territories of Guam and the Commonwealth of the Northern Mariana Islands (CNMI), but the comparison requires care. American Samoa is Polynesian, while Guam and the CNMI belong geographically to Micronesia and have distinct Chamorro, Carolinian and other communities, colonial histories, migration patterns and food systems. Explore that wider setting on the site’s Micronesia metabolic-health page.
The CDC Island Health Program groups American Samoa, Guam and the CNMI within a broader U.S.-affiliated island-health effort. Shared constraints include limited access to healthy foods, vulnerability to typhoons and other disasters, shortages of health workers, small public-health systems and the expense of off-island specialty care. The risk-factor profile is not identical: territory surveillance highlights particularly high overweight and obesity in American Samoa, high cigarette smoking in the CNMI, and major diabetes, obesity, cardiovascular and cancer concerns across the region.
Raw percentages should not be placed in a simple league table unless they use comparable years, age groups, definitions and measurement methods. American Samoa’s hybrid STEPS estimates include measured height, weight, blood pressure and glucose. Guam also reports through U.S. systems such as BRFSS, which generally relies on self-reported height and weight and can yield different estimates. For current Guam context, see WHO’s Guam health overview; for CNMI, the CDC Island Health program provides the most useful common framework.
The comparison nevertheless reveals practical opportunities: coordinated procurement, shared surveillance methods, regional training, culturally adapted diabetes prevention, stronger disaster-ready food systems and exchange of school-nutrition and local-agriculture models across the three U.S. territories.
American Samoa’s solution can be both Samoan and modern: strong families and villages, local agriculture and fisheries, rigorous clinical screening, and public institutions that make nourishing choices easier.
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