The Nielsen Company has released a new study on the impact of sustainability claims on sales. Titled “What’s Sustainability Got to Do With It,” the report found that brands with sustainability claims outperform their category in sales growth with an increase in sales over a 12-month period ending in March 2018.

Nielsen concluded that these brands, in particular, outperform their competitors in their category, but that sustainability is also a broad term, encompassing everything from fair trade, lack of artificial ingredients, organic, and recyclable packaging. Furthermore, the study finds that the impact on performance for a particular sustainability claim varies depending on the category.

The study tracked three categories-coffee, chocolate, and bath products, and for each section, Nielsen chose specific sustainability keyword groups to track.