According to Gram Research analysis, a cost-reduced community farm program in New York City helped people eat significantly more vegetable variety and learn how to prepare unfamiliar produce. Over a 20-week growing season, participants in the Harvest Share program added an average of 3.74 new types of vegetables to their diet and learned to cook 1.60 more types they previously didn’t know how to prepare, while a comparison group showed minimal improvement. The program also strengthened community connections and improved participants’ sense of well-being.
A new program called Harvest Share in New York City made fresh vegetables more affordable and accessible by partnering with local farms. Researchers studied 542 people over a 20-week growing season to see if the program helped them eat healthier. People who joined the program ate more types of vegetables, learned how to cook unfamiliar produce, and reported feeling more connected to their community. The results suggest that making fresh food affordable and tailored to what people actually want can be an effective way to improve eating habits while supporting local farmers.
Key Statistics
A 2026 preliminary trial of 542 New York City residents found that Harvest Share participants added an average of 3.74 new types of vegetables to their diet over 20 weeks, compared to nearly zero change in the comparison group.
According to a 2026 study of the Harvest Share program, CSA participants learned how to prepare 1.60 more types of vegetables they previously didn’t know how to cook, with statistically significant differences compared to non-participants.
A 2026 mixed-methods evaluation of 542 people found that Harvest Share participants’ vegetable intake declined by only 7.43 points over the growing season, compared to a 27.29-point decline in the comparison group.
Qualitative interviews with 23 Harvest Share participants in 2026 revealed that the cost-offset CSA program promoted family connections, community bonds, and improvements in physical and mental health alongside dietary changes.
The Quick Take
- What they studied: Whether a cost-reduced farm-share program could help people in New York City eat more fruits and vegetables while building community connections.
- Who participated: 542 people in New York City, mostly women (80%), average age 44, with diverse backgrounds (48% Asian, 37% Hispanic/Latino). About half earned less than $50,000 per year. Some joined the Harvest Share program (153 people) while others didn’t (389 people).
- Key finding: People in the Harvest Share program ate significantly more types of vegetables and learned how to prepare unfamiliar produce, while people not in the program didn’t show these improvements. The CSA group’s vegetable intake stayed relatively stable, while the comparison group’s actually declined.
- What it means for you: If you struggle to eat enough vegetables or feel intimidated by unfamiliar produce, an affordable, community-based farm program tailored to your neighborhood’s preferences might help. However, this is early research from one program in one city, so results may vary in other places.
The Research Details
Researchers created the Harvest Share program, which is a community-supported agriculture (CSA) model—basically a partnership where people pay upfront to receive weekly boxes of fresh vegetables from local farms. What made this program different is that it was designed specifically for New York City communities and offered cost reductions to make it affordable. The study followed 542 people over a 20-week growing season (roughly June through October 2023). Some people joined the Harvest Share program (153 participants), while others served as a comparison group (389 participants) who didn’t participate. Everyone answered questions about their eating habits at the beginning and end of the season. Researchers also used a special tool called the Veggie Meter, which objectively measures how many vegetables people eat by looking at what they actually consume. Additionally, 23 people participated in detailed interviews to share their personal experiences with the program.
This research approach is important because it combines both numbers and personal stories. The surveys and Veggie Meter give hard data about whether eating habits actually changed, while the interviews reveal why people felt the program mattered to them. By comparing the CSA group to a similar group of people who didn’t participate, researchers could see what difference the program actually made, rather than just assuming any changes were because of the program.
This study has several strengths: it measured actual vegetable intake using an objective tool (Veggie Meter) rather than just asking people to remember what they ate, it included a comparison group for fair comparison, and it collected both quantitative data and personal stories. However, it’s a preliminary year-one evaluation, so longer-term results are unknown. The study was conducted in New York City with specific communities, so results may not apply everywhere. The comparison group wasn’t randomly assigned, which means the groups might have been different in ways that affected the results.
What the Results Show
The main finding was that Harvest Share participants showed significantly better outcomes in three key areas: their Veggie Meter scores (a measure of actual vegetable consumption), the variety of fruits and vegetables they ate, and their knowledge about how to prepare different vegetables. While both groups showed a slight decline in Veggie Meter scores over the season, the decline was much smaller for CSA participants (-7.43 points) compared to the comparison group (-27.29 points). This means the CSA program helped slow down the natural decline in vegetable eating that happened in both groups. CSA participants added an average of 3.74 new types of vegetables to their diet, while the comparison group added almost none (0.05 types). Perhaps most importantly, CSA participants learned how to prepare 1.60 more types of vegetables they previously didn’t know how to cook, while the comparison group showed almost no improvement in this area (-0.13 types). These differences were all statistically significant, meaning they’re unlikely to have happened by chance.
Beyond just eating more vegetables, the qualitative interviews revealed that Harvest Share created important social benefits. Participants reported that the program strengthened family connections—families cooked together with the new vegetables they received. People also felt more connected to their community and to local farmers. Several participants mentioned improvements in their physical health and mental well-being, though these weren’t formally measured in the study. The program appeared to work especially well because it was tailored to what each neighborhood actually wanted and could afford, rather than offering a one-size-fits-all approach.
Community-supported agriculture programs have been studied before and shown promise for increasing vegetable intake. However, previous CSA programs often had barriers—they were expensive, didn’t offer the types of vegetables people wanted, and didn’t reflect local community preferences. Harvest Share builds on this existing research by specifically addressing these barriers through cost-reduction and community input. The finding that the program helped people learn how to cook unfamiliar vegetables is particularly novel, as previous research hasn’t emphasized this educational component as much. The social and mental health benefits align with other research showing that community-based food programs do more than just improve nutrition—they strengthen social bonds.
This study has several important limitations to consider. First, it only followed people for one 20-week growing season, so we don’t know if the benefits last longer. Second, the study was conducted only in New York City with specific communities, so the results might not apply to other cities or neighborhoods. Third, the comparison group wasn’t randomly selected, so the two groups might have been different in ways that affected the results (for example, people who joined Harvest Share might have been more motivated to eat vegetables already). Fourth, while 542 people started the study, only 23 participated in the detailed interviews, so we have limited personal stories. Finally, the study didn’t measure whether people actually stuck with the program long-term or whether they continued eating more vegetables after the growing season ended.
The Bottom Line
If you live in an area with a similar community-supported agriculture program and struggle to eat enough vegetables, trying it could help you eat more variety and learn new cooking skills. The evidence is moderately strong for this specific program in New York City. However, this is early research, so it’s not yet clear if similar programs would work equally well in other cities. Talk to your doctor or a nutritionist if you have specific dietary concerns. The program appears to work best if you’re open to trying new vegetables and willing to learn new cooking methods.
This research matters most for people living in urban areas who want to eat more vegetables but face barriers like cost, not knowing what to cook, or feeling disconnected from where their food comes from. It’s also relevant for city planners, public health officials, and farmers interested in making fresh food more accessible. People with very limited budgets might especially benefit from the cost-offset model. However, if you already eat plenty of vegetables or live in an area without similar programs, this research is less directly applicable to you.
Based on this study, you could expect to see changes in vegetable variety within the first few weeks of the program as you receive different produce each week. Learning how to cook new vegetables might take a few weeks to a couple of months as you experiment with recipes. The social and mental health benefits appeared to develop over the 20-week season, suggesting that community connection builds gradually. However, we don’t know yet how long these benefits last after the program ends.
Frequently Asked Questions
Does community supported agriculture actually help people eat more vegetables?
Research shows yes—a 2026 study of 542 New York City residents found that CSA participants added an average of 3.74 new vegetable types to their diet over 20 weeks, compared to almost no change in non-participants. The program was especially effective when tailored to community preferences and made affordable.
Can a farm share program help you learn to cook new vegetables?
Gram Research analysis found that Harvest Share participants learned to prepare 1.60 more types of vegetables they previously didn’t know how to cook. The program’s educational component and regular exposure to new produce appeared to build cooking confidence and skills over the 20-week season.
What are the non-food benefits of joining a community farm program?
Beyond nutrition, a 2026 study found that CSA participants reported strengthened family connections, improved community bonds with neighbors and farmers, and improvements in physical and mental well-being. These social benefits developed gradually over the 20-week growing season.
How much does a cost-offset CSA program cost compared to regular grocery shopping?
The study doesn’t specify exact costs, but Harvest Share was designed with cost-reduction specifically to make it affordable for lower-income communities. About 55% of participants earned less than $50,000 annually, suggesting the program successfully reached people with limited budgets.
Will the benefits of a CSA program last after the growing season ends?
The study only followed participants for one 20-week growing season, so long-term effects are unknown. Researchers noted this as a limitation, meaning we can’t yet say whether people maintain their new eating habits and cooking skills after the program ends.
Want to Apply This Research?
- Track the number of different types of vegetables you eat each week. Set a goal to try at least one new vegetable variety per week and log it in the app. This mirrors the study’s finding that CSA participants added an average of 3.74 new vegetable types to their diet.
- Use the app to receive weekly notifications about vegetables in your CSA box, then search the app’s recipe database for cooking methods you haven’t tried. Mark recipes as ‘completed’ when you prepare them, building a personal cookbook of new skills.
- Create a monthly summary view showing your vegetable variety trend. Compare your current month to previous months to visualize progress. Set reminders to rate your confidence in preparing different vegetables, tracking improvement in cooking knowledge over time.
This research represents preliminary findings from one year of the Harvest Share program in New York City and should not be considered definitive medical advice. Results may not apply to other geographic areas or populations. Individual dietary needs vary; consult with your healthcare provider or registered dietitian before making significant changes to your diet or starting a new food program. This study was not a randomized controlled trial, so causation cannot be definitively established. Longer-term follow-up studies are needed to determine if benefits persist beyond the growing season.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.