A randomized controlled trial of 460 Medicaid-insured patients with type 2 diabetes found that receiving weekly deliveries of healthy groceries and nutrition counseling lowered blood sugar (HbA1c) by 0.66 points over 6 months, compared to 0.25 points in the control group—a statistically significant difference of 0.40 points. According to Gram Research analysis, the program also tripled the likelihood of having access to healthy food and more than doubled food security, suggesting that making nutritious groceries affordable and accessible can meaningfully improve diabetes control.
A major study of 460 people with type 2 diabetes found that receiving weekly deliveries of healthy groceries and nutrition advice significantly improved their blood sugar control. Participants who got the food delivery service saw their blood sugar levels drop by 0.66 points over six months, compared to just 0.25 points in the control group. The program also helped people feel more secure about having enough food to eat. This research suggests that making nutritious food more accessible and affordable could be a powerful tool for managing diabetes, especially for people with limited resources.
Key Statistics
A 2026 randomized controlled trial of 460 Medicaid-insured patients found that medically tailored grocery delivery reduced HbA1c (blood sugar) by 0.66 points over 6 months, compared to 0.25 points in the control group, a statistically significant difference of 0.40 points (P=0.016).
According to research reviewed by Gram, participants receiving medically tailored groceries were 3.65 times more likely to report nutrition security (reliable access to healthy food) and 2.12 times more likely to report food security compared to the control group in a 460-person randomized trial.
In a 2026 trial of 460 adults with type 2 diabetes, 83.3% of medically tailored grocery recipients reported eating most or all of the food provided, demonstrating high adherence to the intervention.
A 2026 randomized controlled trial found that both lower-dose ($100-170/month) and higher-dose ($135-210/month) medically tailored grocery programs produced similar HbA1c reductions in 460 Medicaid-insured patients with type 2 diabetes, suggesting cost-effective options are available.
The Quick Take
- What they studied: Whether delivering healthy groceries and nutrition counseling to people’s homes helps them control their type 2 diabetes better than usual care.
- Who participated: 460 adults with type 2 diabetes who had Medicaid insurance in southern California. Most were women (65%), Hispanic (85%), and about 58% struggled to afford enough food. Average age was 59 years.
- Key finding: People who received weekly healthy food deliveries for 6 months lowered their blood sugar (HbA1c) by 0.66 points, while the control group only dropped 0.25 points—a meaningful difference of 0.40 points that was statistically significant (P=0.016).
- What it means for you: If you have type 2 diabetes and struggle to afford healthy food, getting help with groceries could meaningfully improve your blood sugar control. However, this program works best as part of a complete diabetes management plan with your doctor.
The Research Details
Researchers randomly divided 460 people into three groups: one group received usual care (no special groceries), one group got lower-dose healthy food deliveries ($100-170 per month), and one group got higher-dose deliveries ($135-210 per month). Everyone in the food delivery groups also received recipes matched to their groceries and access to nutrition counseling by phone or video. The study lasted 6 months, from November 2021 to July 2022.
This is called a randomized controlled trial, which is the gold standard in medical research. By randomly assigning people to groups, researchers can be more confident that differences in results come from the food program itself, not from other factors. The study measured blood sugar control using a test called HbA1c, which shows average blood sugar over the past 3 months. Researchers also measured food security (whether people had enough food), nutrition security (whether they had access to healthy food), blood pressure, and weight.
The study was carefully designed to compare the combined food delivery groups against the control group, and also to see if higher doses worked better than lower doses. Researchers also looked at whether the program worked equally well for different groups of people (men vs. women, different education levels, etc.).
This research design is important because it shows cause-and-effect relationships rather than just associations. By randomly assigning people to groups, we can be confident the food program caused the improvements, not other factors. The study also included real-world patients from a diverse background with limited resources, making the results more applicable to people who actually need help managing diabetes.
This study has several strengths: it’s a randomized controlled trial (the highest quality type of study), it included a large, diverse group of 460 people, it was published in Circulation (a top medical journal), and it lasted 6 months (long enough to see real changes). Most participants (83%) actually ate the food provided, showing good compliance. However, only 21.5% engaged with the nutrition counseling, which might have limited some benefits. The study was conducted in southern California, so results may not apply equally to other regions.
What the Results Show
The main finding was that people receiving medically tailored groceries (MTG) lowered their blood sugar significantly more than those receiving usual care. The intervention group’s HbA1c dropped 0.66 points from baseline, while the control group’s dropped only 0.25 points—a difference of 0.40 points that was statistically significant (P=0.016). This means the food delivery program worked.
Interestingly, both the lower-dose and higher-dose food delivery groups showed similar improvements, suggesting that even the less expensive option ($100-170 per month) was effective. This is good news because it means people don’t need the most expensive program to see benefits.
Beyond blood sugar, the program had impressive effects on food security. People who received the groceries were 2.12 times more likely to report having enough food to eat, and 3.65 times more likely to report having access to healthy food specifically. These improvements in food security are important because they address a root cause of poor health—not having enough nutritious food available.
The benefits were consistent across different groups of people. Whether someone was male or female, had more or less education, or started with different baseline blood sugar levels, the program helped them similarly. This suggests the program works for a wide range of people with type 2 diabetes.
While the program successfully improved blood sugar and food security, it did not significantly change blood pressure or body weight. This might seem surprising, but it’s not uncommon—blood sugar control can improve before weight changes become noticeable. The study lasted 6 months, which may not be long enough to see major weight loss. Additionally, the program focused on providing healthy food rather than restricting calories, so weight loss wasn’t necessarily expected.
This is one of the first large randomized controlled trials testing medically tailored groceries for diabetes. Previous research suggested MTG could help, but most evidence came from smaller studies or observational research (where researchers just watched what happened without randomly assigning people). This study provides stronger evidence that the approach actually works. The findings align with the theory that food insecurity—not having reliable access to healthy food—is a major barrier to managing chronic diseases like diabetes.
The study has several limitations to consider. First, it only included Medicaid-insured patients in southern California, so results may not apply to people with other insurance or in other regions. Second, only about 21.5% of participants engaged with the nutrition counseling, which was offered but optional. More counseling engagement might have produced even better results. Third, the study lasted only 6 months, so we don’t know if benefits continue longer or if people maintain improvements after the program ends. Fourth, the program required home delivery infrastructure, which may not be available everywhere. Finally, while the blood sugar improvement was statistically significant, a 0.40-point drop in HbA1c is modest—meaningful but not dramatic.
The Bottom Line
For people with type 2 diabetes who struggle to afford healthy food: Gram Research analysis shows that medically tailored grocery programs can meaningfully improve blood sugar control. If such a program is available to you through Medicaid or another source, it’s worth trying. The evidence is strong (from a randomized controlled trial) but the effect is moderate, so it should be combined with other diabetes management strategies like medication, exercise, and regular doctor visits. Confidence level: Moderate to High for blood sugar improvement; High for improving food security.
This research is most relevant to: (1) People with type 2 diabetes who have food insecurity or limited income; (2) Medicaid programs and healthcare systems looking for ways to help patients manage diabetes; (3) Policymakers considering food-as-medicine programs; (4) Healthcare providers treating low-income patients with diabetes. The findings may be less applicable to people with adequate food access or higher incomes, though the approach could still help them.
Based on this study, you can expect to see improvements in blood sugar control within 6 months of starting a medically tailored grocery program. The improvements in food security appeared relatively quickly as well. However, maintaining these benefits likely requires continuing the program—we don’t know what happens after it ends.
Frequently Asked Questions
Does getting free healthy groceries delivered actually help control type 2 diabetes?
Research shows it does help meaningfully. A 2026 trial of 460 people found that medically tailored grocery delivery reduced blood sugar (HbA1c) by 0.66 points over 6 months versus 0.25 points in the control group. This improvement is statistically significant and clinically meaningful when combined with other diabetes management.
How much does a medically tailored grocery program cost?
In this study, the lower-dose program cost $100-170 per month and the higher-dose cost $135-210 per month. Both produced similar blood sugar improvements. These programs are typically available through Medicaid or healthcare systems for eligible patients, so the cost may be covered by insurance rather than out-of-pocket.
Will medically tailored groceries help me lose weight if I have diabetes?
This study didn’t show significant weight loss from the grocery program alone over 6 months, though blood sugar improved. Weight loss may take longer or require additional calorie-focused strategies. The program’s main benefit is improving blood sugar control and food security, which are important for diabetes management.
Who is eligible for medically tailored grocery programs?
This study included Medicaid-insured adults with type 2 diabetes and elevated blood sugar levels. Eligibility varies by program and location. Ask your doctor or Medicaid case manager if you qualify. Programs typically target people with chronic diseases, food insecurity, or limited income.
How long do the benefits last after the program ends?
This study only tracked people for 6 months while they received groceries, so we don’t know if benefits continue after the program stops. Maintaining improvements likely requires continuing healthy eating habits, so combining the program with long-term lifestyle changes and medical care is important.
Want to Apply This Research?
- Track your HbA1c test results every 3 months (or as recommended by your doctor) to measure blood sugar improvement. Also track weekly whether you’re eating the healthy groceries provided and any changes in how often you worry about having enough food.
- If enrolled in a medically tailored grocery program through the app, set a weekly reminder to review the recipes provided with your groceries and plan meals. Use the app to log which meals you prepare and how you feel after eating them. This reinforces the connection between the healthy food and your health improvements.
- Create a dashboard showing your HbA1c trend over time, food security status (do you have enough food?), and nutrition security (do you have access to healthy food?). Compare these metrics monthly to see if the program is working for you. Share this data with your doctor to adjust your diabetes management plan if needed.
This research shows that medically tailored groceries can help improve blood sugar control in people with type 2 diabetes, but it should not replace medical treatment prescribed by your doctor. Always consult with your healthcare provider before making changes to your diabetes management plan, including diet or medication. This study was conducted in a specific population (Medicaid-insured patients in southern California) and results may vary for other groups. The program works best as part of a comprehensive diabetes management approach that includes regular medical care, medication as prescribed, physical activity, and ongoing monitoring.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.