Solving food insecurity requires action at every level, from federal policy down to neighborhood gardens. About 2.3 billion people worldwide experienced moderate or severe food insecurity in 2024, and in the United States alone, roughly 30 to 40 percent of the food supply goes to waste while millions of households struggle to put meals on the table. There is no single fix, but a combination of proven strategies can sharply reduce the problem.
Why Food Insecurity Matters for Health
Food insecurity isn’t just about hunger in the moment. It reshapes long-term health. Adults in food-insecure households have a 21 percent higher risk of hypertension and roughly 50 percent higher risk of diabetes compared to those with reliable access to food. Children in these households face elevated rates of iron-deficiency anemia, chronic illness, and developmental and mental health problems.
These health costs ripple outward. When people cycle between periods of scarcity and cheap, calorie-dense food, it drives the very chronic diseases that make it harder to work, earn, and stay healthy. Any serious solution has to break that cycle, not just put food on a plate today but ensure it’s nutritious enough to prevent disease tomorrow.
Strengthen the Safety Net Programs That Already Work
The most immediate, large-scale tool the U.S. has is SNAP (the Supplemental Nutrition Assistance Program). Census Bureau data shows SNAP moved 3.2 million people out of poverty in 2018 and averaged 3.5 million across 2016 to 2018, cutting the national poverty rate by just over a full percentage point. That makes it one of the single most effective anti-poverty programs in the country.
Expanding eligibility, raising benefit amounts, and reducing administrative barriers to enrollment are the fastest ways to reach more people. Many households that qualify for SNAP never apply because the process is confusing or stigmatized. States that have simplified their applications and allowed online enrollment consistently see higher participation rates. If you want to help at a policy level, advocating for these streamlined processes has an outsized impact.
Make School Meals Universal
Universal free school meal programs, where every student eats for free regardless of family income, eliminate the paperwork and stigma that keep eligible kids from eating. A systematic review published in JAMA Network Open found that universal meal programs were associated with a measurable decrease in childhood obesity prevalence (about 0.6 percentage points) and a corresponding increase in normal-weight prevalence. These may sound like small numbers, but applied across millions of students they represent a meaningful public health shift.
Universal programs also remove the “cliff effect,” where a family earning slightly too much to qualify loses benefits entirely. When every child is covered, no one falls through the gap. Several U.S. states have already adopted universal school meals, and early results consistently show improved participation with no meaningful increase in waste.
Recover the Food We Already Produce
An estimated 13 percent of food produced globally is lost between harvest and retail, and another 17 percent is wasted at the retail and consumer level. In the U.S., that translates to roughly 133 billion pounds of food lost each year. The gap between what we throw away and what food banks need is staggering.
Retailers generated nearly 5 million tons of surplus food in 2022. About 35 percent of that went straight to landfills or incinerators. Only 19.5 percent was donated to food rescue organizations, and less than 6 percent of all wasted food nationally ends up donated. Closing that gap requires three things: liability protections that make businesses comfortable donating (the federal Good Samaritan Food Donation Act already provides this, but many businesses don’t know it exists), tax incentives that make donation cheaper than disposal, and logistics infrastructure like refrigerated trucks and coordinated pickup schedules that connect surplus to need in real time.
At the household level, consumers waste far more per person than retailers do: about 29 kilograms per capita per year sent to landfill, compared to 3 kilograms from the retail sector. Better meal planning, understanding date labels (which are mostly about quality, not safety), and composting what can’t be saved all reduce household-level waste.
Fix Food Access in Underserved Areas
Opening a grocery store in a neighborhood that lacks one seems like an obvious solution, but the evidence is more nuanced than you’d expect. Two major reviews found that most new supermarket interventions showed no clear association with improved diet or food purchasing behavior. However, some studies show these stores do reduce purchases of unhealthy items like sugary drinks and may help mitigate food insecurity overall.
Government-subsidized supermarkets, established through zoning and financial incentives, appear to have a small but real effect on childhood obesity risk. The key seems to be pairing physical access with affordability. A store full of fresh produce doesn’t help if the prices are out of reach. Programs that combine new stores with subsidized pricing for fruits and vegetables, or that double SNAP dollars spent on produce, consistently show stronger results than building a store alone.
Mobile markets, community-supported agriculture (CSA) shares offered on sliding-scale pricing, and partnerships between food banks and local farms are filling gaps in areas where a full supermarket isn’t economically viable.
Grow Food Locally
Urban agriculture won’t replace industrial farming, but it can meaningfully supplement local food supplies. A meta-analysis of urban farming operations worldwide found that urban agricultural yields are on par with or greater than global average conventional yields. For some crops the difference is dramatic: urban cucumber yields averaged 17 kilograms per square meter per growing cycle, compared to 3.8 kilograms in conventional agriculture. Hydroponic tomato systems in urban settings significantly outperformed soil-based growing as well.
Community gardens do more than produce calories. They build social ties, teach food skills, and give residents agency over what they eat. Cities that invest in community garden infrastructure, including water access, soil testing, and secure land tenure so gardeners aren’t displaced by development, see the most sustained participation. School gardens double as educational tools, connecting kids to the food system in ways that influence their eating habits long after they leave the garden.
Build a More Resilient Food Supply
Much of food insecurity is driven by disruption: extreme weather destroys crops, supply chains break down, prices spike. Regenerative agriculture practices like cover cropping, reduced tillage, and diversified crop rotations build soil that holds more water and nutrients, making farms more resilient to drought and flooding. Research shows that increasing soil organic carbon is a critical climate adaptation strategy as extreme weather events intensify through the 21st century.
Diversified crop rotations and managed grazing show the greatest potential for building soil carbon, while agroforestry (integrating trees into farmland) stores even more. These aren’t fringe techniques. They represent a shift from extractive farming that degrades soil over time to systems that restore it, producing more nutrient-dense food while reducing vulnerability to the climate shocks that cause food crises in the first place.
Supporting local and regional food systems also builds resilience. When a community depends entirely on food shipped from thousands of miles away, any disruption in transit becomes a food access emergency. Shorter supply chains, regional food hubs, and policies that support mid-sized farms create redundancy in the system.
What You Can Do Right Now
If you’re experiencing food insecurity yourself, SNAP, WIC (for pregnant women and young children), and local food banks are the fastest sources of help. Many food banks now offer fresh produce and culturally relevant foods, not just shelf-stable staples. The USDA’s FoodHelp.gov can connect you with programs in your area.
If you want to help solve the broader problem, the highest-impact actions are supporting policy changes: expanded SNAP benefits, universal school meals, incentives for food donation and recovery, and investment in community food infrastructure. Volunteering at food banks and community gardens helps, but the scale of food insecurity is a systems problem. The solutions that move millions of people out of hunger are the ones backed by policy and funding, not just goodwill.