Why is micronutrients still deficient in Asian countries and not the US?

Micronutrient deficiencies in Asian countries can be attributed to factors such as poverty, limited access to diverse and nutrient-rich foods, and inadequate agricultural practices. Many regions rely on staple crops that lack essential vitamins and minerals, and socio-economic disparities further exacerbate nutritional gaps. In contrast, the US benefits from a more diverse food supply, better agricultural practices, and widespread nutritional education, which collectively help to reduce the prevalence of micronutrient deficiencies. Additionally, public health initiatives in the US promote fortified foods, further mitigating the issue.