Food Prescriptions for Diabetes

What does food as medicine mean for diabetes?

The American College of Lifestyle Medicine announced a medical school curriculum and an updated food-as-medicine continuing education course on October 13. That development concerns clinician training; whether providing food improves diabetes outcomes is a separate question requiring clinical evidence. The distinction matters when patients encounter claims that a food prescription can deliver the same predictable results as a tested medication. [ACLM announcement](https://www.prnewswire.com/news-releases/aclm-launches-two-solutions-to-advance-nutrition-and-lifestyle-medicine-education-helping-meet-federal-and-state-requirements-302902413.html).

Food insecurity means having limited or uncertain access to adequate food. For someone managing diabetes, that can create difficult choices between groceries, medicines and other necessities. CDC explains that inconsistent meals can contribute to both high and low blood sugar, depending on food intake and treatment. Nutrition advice therefore needs to account for whether a person can obtain and prepare the recommended foods. [CDC guidance](https://www.cdc.gov/diabetes/healthy-eating/diabetes-food-insecurity.html).

What have randomized trials found about blood sugar?

A trial published in JAMA Internal Medicine in 2024 randomized 500 adults with type 2 diabetes and food insecurity to immediate program access or a waiting list. The program supplied household groceries, dietitian consultations and other support. Six-month laboratory results were available for 349 participants. HbA1c, a measure of longer-term blood sugar, improved in both groups without a statistically significant additional benefit from the program. Engagement with preventive care increased. [Randomized grocery-program trial](https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2812982).

A different trial, published in the Journal of General Internal Medicine in 2019, enrolled 44 adults. Participants received medically tailored meals for 12 weeks and usual care without meal delivery for another 12 weeks, in randomly assigned order. During meal delivery, diet quality improved and participants reported less food insecurity and fewer episodes of low blood sugar. Those short-term findings did not establish sustained HbA1c improvement or fewer long-term complications. [Randomized meal-delivery trial](https://pubmed.ncbi.nlm.nih.gov/30421335/).

These studies evaluated different services and outcomes. Taken together, they suggest that improving food access can provide meaningful benefits, while stronger claims about glucose control require evidence for the particular program being offered.

How can food support become part of safe diabetes care?

NIDDK recommends discussing difficulties obtaining healthy food with the diabetes care team. A registered dietitian, diabetes educator or social worker may help identify suitable resources and develop an affordable meal plan. Patients can make those conversations more useful by describing missed meals, transport problems, cooking facilities and foods their household actually eats. [NIDDK diabetes management guidance](https://www.niddk.nih.gov/health-information/diabetes/overview/managing-diabetes).

Medication safety also matters. CDC notes that skipping meals can cause low blood sugar in people taking insulin or certain other diabetes medicines. Someone whose food supply changes unpredictably should tell their clinician so treatment and monitoring can be reviewed. Receiving a grocery box or meal delivery does not, by itself, establish that a medicine should be reduced or stopped. [CDC guidance on food insecurity and diabetes](https://www.cdc.gov/diabetes/healthy-eating/diabetes-food-insecurity.html).

A practical implication of the research is that programs should track several outcomes: reliable food access, diet quality, low blood sugar episodes, treatment engagement and HbA1c. These measures answer different questions. A service may reduce hardship even when its trial does not demonstrate an additional blood sugar benefit.