SomebodyMakeAConstruct/kubejs/startup_scripts/rebalance.js

ItemEvents.modification(event => {
    event.modify('pamhc2foodcore:freshwateritem', item => {
        item.foodProperties = food => {
            food.hunger(0.5);
            food.saturation(0.5);
            food.fastToEat(false);
        };
    });
});