A Santa Clara County resident works in a community garden.

A diet containing lots of vegetables is lower in calories and higher in fiber and good for our health. Yet, not everyone has easy access to fresh vegetables in the United States.

“Growing vegetables and having a garden is an effective intervention to promote increased vegetable consumption among all Americans,” said Susan Algert, UC Cooperative Extension advisor in Santa Clara County, who conducted the survey. “This is evidence for bringing back popular home gardens or ‘Victory gardens' of the past rather than investing exclusively in SNAP benefits for purchased foods.”

SNAP, the federal Supplemental Nutrition Assistance Program (formerly called food stamps), now allows participants to buy seeds with their benefits, which helps low-income people who want to grow their own veggies, she said.

Vegetable consumption falls well below the U.S. Dietary Guidelines in much of the U.S., particularly among African American, Latino, low educational attainment, and low-income populations.

Algert and fellow UC Cooperative Extension researchers looked at background characteristics, vegetable intake and program benefits of people who cultivated a home garden versus those who participated in a community garden.

“The home gardeners were significantly younger, had lower incomes, were less likely to have completed college and were more ethnically diverse than the community gardeners,” said Algert, who specializes in nutrition. “In other words, the background characteristics of the two groups varied significantly. In spite of these significant demographic differences, both groups increased their vegetable consumption from the garden to the same extent, by about two servings.”

In fact, by supplementing with food from their gardens, both groups met the U.S. Dietary Guidelines for recommended daily servings of vegetables to promote optimal health.

A lack of experience as gardeners didn't affect the results much. Fifty eight percent of the home gardeners reported having less than two years of experience whereas only one-third of community gardeners were novices.

“This study demonstrates that growing fresh vegetables in either a home or community garden setting can contribute significantly to a person's nutritional intake and food security at all income levels by making it a more affordable to maintain a healthful diet,” said Algert. Urban gardeners also experience a number of other benefits including exercise, stress release, and learning about gardening from their peers and mentors.

The study was a partnership with the Parks, Recreation and Neighborhood Services Department of the City of San Jose and La Mesa Verde, a project of Sacred Heart Community Services of San Jose. The UCCE research group worked with the Parks Department to administer a 30 question background survey to 83 community gardeners in four different gardens during April through September 2012. The same survey, slightly modified, was administered to a group of 50 home gardeners participating in Sacred Heart's La Mesa Verde project between September 2013 and April 2014.