今年的世界粮食日主题 -Change the future of migration. Invest in food security and rural development- 强调了一个越来越多的人正在移动，寻求政治稳定和更好的环境的世界中带来的挑战。由于这给可用资源带来了增加的压力，因此必须采取策略来解决农村发展，并建立有利条件以保留人口。
撒哈拉以南非洲
Food security is defined as ‘the state of having reliable access to a sufficient quantity of affordable, nutritious food.’ In sub-Saharan Africa, there are many examples of food insecurity and some of them have reached catastrophic levels, having also been affected by severe floods and droughts. Since 1990, the number of stunted children in sub-Saharan Africa has increased by 33% even though it has fallen in all other world regions.
粮食不安全不仅仅是粮食生产，可用性和摄入量不足，而且还涉及食物的质量或营养价值差。例如，大多数主食，例如谷物，块茎和豆类富含维生素C，但它们的铁，维生素A和锌浓度很低。A学习published recently inBMC公共卫生uses the proportion of household food spending on staples to explain stunting and wasting among children aged 5 years or less in Uganda, a country with a wide variety of staple foods. The researchers find that a greater proportion of less nutritious staple foods is associated with both wasting and stunting.
美国
It may come as a surprise but food insecurity is a growing public health concern in the United States. American Indian families are particularly vulnerable as they have limited access to healthy foods and higher levels of poverty.
考虑到迄今为止迄今尚无研究检查美国印第安人或非常年轻的美国印度儿童的家庭粮食不安全与饮食摄入之间的关系，publication在BMC公共卫生试图确定美洲印第安人家庭中粮食不安全的普遍性及其相关性。他们确定了研究中的美洲印第安人家庭中粮食不安全的普遍性，而农村和城市家庭之间自我报告的粮食不安全的比例显着差异。Their analysis also suggests that identification as American Indian, urban households, lower educational levels, single adult households, and participation in ‘Special Supplemental Nutrition Program for Women, Infants, and Children ‘ are factors that are associated with the increased odds for being food insecure.
粮食不安全与肥胖：公共卫生悖论
As unlikely as it may sound, food insecure children are more likely to be obese. Healthful and affordable food options in low-income neighborhoods or countries can be hard to come across, meaning that parents opt for food which is cheap but not necessarily nutritious.
A学习published inBMC公共卫生衡量家庭粮食不安全性的社会经济相关性，并探讨了其与黎巴嫩母亲之间的饮食摄入量和肥胖几率的关联，黎巴嫩是一个经历了营养过渡的中等收入国家。它报告说，在黎巴嫩城市家庭中存在较高的家庭粮食不安全流行，这些家庭的母亲的饮食不足和肥胖症风险很高。
Improving low-income areas access to affordable foods would be a significant step towards healthier communities but this is challenging. Programs need to be developed at local and national levels to increase the dietary quality and diversity of foods consumed by at-risk populations through promoting the consumption of affordable nutrient-dense foods including fruits, vegetables, and protein-rich foods, and lowering the intake of added sugars and refined grains. School-related policies which provide nutritious meals to children who are otherwise not receiving these at home provides an example of a good starting point.
如果您正在进行有关粮食安全，食物选择或营养的研究，为什么不提交您的工作BMC公共卫生？不要犹豫contactus if you would like to ask about the suitability of your manuscript to the journal.
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