Pizza may not have a reputation as a health food, but that’s no reason to use ingredients that may make the pizza even less good for you. In an effort to reach consumers clamoring for less-questionable fast food, Pizza Hut has announced some upcoming upgrades to its ingredients.

By the end of March 2017, Pizza Hut will cease using cheese with artificial preservatives. The company has set the same deadline for cutting out antibiotics in the chicken it uses — “for its pizzas.” It’s important to note that qualification as Pizza Hut also sells chicken wings and pasta dishes that contain chicken.

This summer (by the end of July), all the meat used at Pizza Hut will be free of two controversial food additives: butylated hydroxytoluene (BHT), and butylated hydroxyanisole (BHA), the latter of which is currently listed as a known carcinogen in California.

The company tells Fortune that it also plans to remove additional preservatives and additives by 2020.

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