The San Francisco board of supervisors Thursday approved an ordinance mandating its public health department and sheriff’s office to incorporate more plant-based foods into their meals.

Hospitals must replace meat with plant-based options for at least 15% of their meals by 2023. Half the meat products at jails must be substituted by 2024.

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"In some years, our generation will likely look back and reflect at our meat consumption in shock, but culture shifts take time, particularly for elderly and infirmed people,” said Supervisor Sandra Lee Fewer.