For parents of babies and toddlers, diapers are a big expense that can represent a substantial portion of a family’s monthly grocery budget, but when families fall on hard times and get support paying for groceries, diapers aren’t covered. Programs like the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) are meant to fill families nutritional needs, not hygiene needs, so you can’t buy diapers with a SNAP card (also known as food stamps).

This week San Fransisco county became the first county in America to offer free diapers to families who use SNAP, (known at the state level as CalFresh). Starting this month, parents in San Fransisco who use CalFresh qualify for a free monthly supply of diapers thanks to the San Francisco Diaper Bank, a partnership between the Human Services Agency (HSA) and Help a Mother Out (HAMO). This is made possible by a $2.5 million grant from the California Department of Social Services.

It’s good to see communities recognizing that diapers are as necessary as food. Studies indicate that when mothers don’t have the diapers they need for their babies their mental health suffers, but that an “an adequate supply of diapers may prove a tangible way of reducing parenting stress, a critical factor influencing child health and development”

“It costs like $25 for one box of diapers. I remember the time when I had to decide between buying milk and buying diapers. No parent should have to go through that. You have no idea what this program has meant for me,” San Francisco Diaper Bank participant Hanen Bouzidi explains.

Without the extra help, parents like Hanen end up at the mercy of convenience stores that separate the large boxes of diapers to sell them individually. It’s one of those times when being poor means you have to spend more money: You can’t afford a $25 box containing 96 diapers, so you have to spend $1 on one individual diaper at the corner store just to get your baby through the day.

And while many people are quick to suggest low-income parents take up cloth diapering, it is not practical for every family. If the only laundry machines you have access to are coin-operated and outside your home, you may not have the money or the time to launder them. Plus, most laundromats won’t let you wash them and some childcare providers will only take kids who are wearing disposables. In short, cloth diapers are a wonderful solution for many families, but they are not a practical solution many families using SNAP cards. That’s why San Fransisco’s move to provide free diapers is so important.

Some lawmakers in other parts of the country are trying to introduce legislation to provide free diapers to families who need them, so we could see other areas following San Fransisco’s lead in the coming years. This is important because no child should be at risk for the physical problems that can happen when parents feel they have no choice but to reuse or overuse diapers, and no mother should be forced to carry the weight of the guilt of diaper need.

Providing diapers to families who desperately need them improves the health of moms and babies, and removes a barrier that keeps moms from accessing childcare and early childhood education programs.