Eight in ten U.S. adults now live with a chronic disease, and half manage two or more at once. A recent report from the American Medical Association points to a common thread running through the leading causes of death and disability, from heart disease to diabetes: poor nutrition. Experts speaking at an AMA continuing education webinar described the typical American diet as the “SAD plate,” shorthand for the Standard American Diet, in which roughly 58% of calories come from ultraprocessed foods and only about 30% come from minimally processed staples like fruits, vegetables, lean proteins and dairy.
That imbalance is not simply a matter of willpower. Kelseanna Hollis-Hansen, PhD, MPH, a research assistant professor at Tufts University's Friedman School of Nutrition, Science and Policy, told webinar attendees that clinical treatment needs to move past generic advice to eat better and exercise. Many patients already have healthy habits and still struggle with weight or blood sugar because of underlying medical conditions, medications, or sleep disorders. The more useful question for a care team is not whether a patient is trying, but what stands between them and consistent access to nutritious food.
The food-is-medicine movement offers a structural answer to a structural problem. Produce-prescription programs give patients vouchers, food boxes or debit cards to obtain fruits and vegetables at a farmer's market, in clinic, or delivered at home. Medically tailored grocery programs go further, assembling boxes of food matched to a patient's condition, while medically tailored meal programs prepare food outright for patients managing chronic illness or recovering from hospitalization. The AMA report cites an evaluation of one medically tailored meal program that found 31% fewer hospitalizations and 20% fewer emergency department visits over six months, with savings that offset roughly 98% of program costs.
Produce box programs built specifically for people managing diabetes, hypertension, cardiac disease and renal conditions are generating similar signals. Peer-reviewed research from a UC Irvine Health partnership evaluating Project FoodBox's program found participants' average A1C dropped from 8.5% to 7.5%, alongside a 40% reduction in diabetes complication risk. Program survey data collected across more than 3,000 participants in 2025 also showed 1.17 fewer fast-food meals eaten per week and a 0.51-point reduction in weekly symptom frequency, with those dietary and well-being gains holding through program completion. Together with the AMA's findings, this points to food access functioning as a clinical lever, not just a social service.
Dietary patterns don't need to be identical to be effective. The Mediterranean diet, the DASH diet, the Harvard Healthy Eating Plate and the EAT-Lancet Planetary Health Diet all differ in detail but converge on the same shape: at least half the plate as vegetables and fruit, whole grains, healthy fats, and more plant protein relative to animal protein. Michelle Hauser, MD, obesity medicine director at Stanford's Lifestyle and Weight Management Center, pointed to author Michael Pollan's summary as a workable rule of thumb for patients: eat food, not too much, mostly plants. Reducing sodium and alcohol intake while increasing potassium-rich foods rounds out the picture, and Hollis-Hansen noted that research now shows no safe threshold for alcohol and cancer risk.
How a clinician raises any of this matters as much as the content. Hauser was direct on this point: no one should be shamed for what they eat. She recommended screening for food access and preference, then working with patients on small, stepwise changes that can be checked and built on over time, rather than issuing a single sweeping directive. That approach doesn't have to fall entirely on physicians. EHR prompts, dietitians, social workers and community health workers can all carry pieces of the screening and referral process, and tools like the Tufts and Kaiser Permanente Food is Medicine Toolkit exist to help practices design that workflow rather than build it from scratch.
None of this replaces medication when medication is warranted. Hollis-Hansen was clear that GLP-1 drugs are approved as an adjunct to nutrition and lifestyle change, not a substitute for it. What food-is-medicine programs add is durability: infrastructure that connects a diagnosis to a refrigerator, on a scale that a single office visit cannot reach on its own.