This research matters to people with diabetes who struggle to afford healthy food. Many face the difficult choice between paying for medication, rent, or groceries. Programs that help people buy nutritious food could potentially improve health and reduce medical costs, but we need evidence to know if they actually work. This study provides important information about whether one specific approach—a produce prescription—makes a measurable difference in health outcomes for this vulnerable group.
The researchers conducted a randomized clinical trial with 2,155 adults who had diabetes and were at risk for food insecurity. All participants received diabetes self-management educational materials. Half were randomly assigned to also receive a special debit card loaded with $80 each month for 12 months to buy fresh, frozen, or canned fruits, vegetables, and legumes at grocery stores. The other half received only the educational materials (usual care). The study took place within an integrated health system in the southeastern United States. Researchers tracked participants for a full year to see if the extra money for healthy food changed their health.
After 12 months, the researchers found no meaningful health improvements from the produce prescription program. Blood sugar levels (measured by HbA1c) were actually slightly higher—by about 0.20 percentage points—in the group that received the debit card compared to the usual care group. While this difference is small, it suggests the program did not help lower blood sugar as hoped. There were also no differences between the two groups in emergency department visits, hospital admissions, blood pressure, or body weight. Essentially, adding the produce prescription to diabetes education did not lead to better health outcomes than education alone.
Regarding safety, the study did not report any specific safety concerns or adverse events related to the produce prescription program. Since the intervention involved providing money specifically for purchasing fruits, vegetables, and legumes, there were likely minimal direct physical risks. However, the study did note an important implementation challenge: only about 30% of participants who received the debit card used 80% or more of their monthly $80 benefit. This moderate usage rate means many people did not fully take advantage of the offered support, which could affect the results.
There are several reasons not to overreact to these findings. First, this is just one study, and its results need to be confirmed by other research. Second, the fact that most participants didn't use the full benefit suggests the program design or barriers to grocery shopping might have limited its effectiveness, not necessarily the idea of food assistance itself. Third, the study measured outcomes at 12 months—some health benefits might take longer to appear. Finally, the program provided a fixed amount ($80 monthly) and specific food restrictions; different amounts or more flexible approaches might yield different results.
For patients with diabetes facing food insecurity right now, this study suggests that a produce prescription program alone, as tested here, may not be enough to significantly improve blood sugar control or reduce hospital visits within a year. It does not mean that eating fruits and vegetables is unimportant for diabetes management—nutrition remains crucial. Rather, it indicates that simply providing funds for produce, without addressing other barriers like transportation, cooking facilities, or comprehensive dietary support, may not lead to measurable health improvements in the short term. Patients should continue working with their healthcare providers on personalized diabetes management plans that include nutrition, while researchers continue to explore the most effective ways to support food-insecure individuals.