How are food insecurity and obesity related?

In North Carolina, two-thirds of all adults (65.7%) are overweight or obese. People in poor and low-income households are at risk for obesity because they have limited resources to purchase and often lack of access to healthy, affordable foods. They have fewer opportunities for physical activity, high levels of stress and limited access to health care. Food deprivation may lead to overeating once food becomes available which can also cause weight gain. Low-income youth and adults are exposed to disproportionately more marketing and advertising for obesity-promoting products.
Source: Food Research and Action Center