CHICAGO — Consumer interest in sustainability is becoming an increasingly important factor when choosing a brand, according to new research from data and analytics solution provider NIQ (formerly NielsenIQ). The company’s Green Divide report, which examined consumer preferences, attitudes and behaviors around sustainability, found that 70% of consumers say sustainability is now more important to them when selecting products than it was two years ago.

When asked to pick the single biggest component behind their purchasing decisions, cost remains king at 18.1%. Environmental friendliness and sustainability have continued to elevate in importance, though, now at 11.2%, ranking just behind safety and hygiene (13.1%), healthier options (13%) and trusted/familiar brands (11.2%).

The growing perception that environmental issues are impacting consumer health is partially responsible for the increased focus on sustainability, said Sherry Frey, vice president of total wellness at NIQ.

“They’re actually telling us ‘I’m being physically impacted by weather events, by droughts, by floods, I think the environment is affecting my health,’” Ms. Frey said. “Consumers are going to prioritize their health and the health of the planet to help others as well.”

Data from market researcher HealthFocus International identified a similar trend, with 74% of consumers in North America indicating the health of the environment is “extremely important” or “important” to their overall health.

“People used to make choices separately about the environment and separately about their health,” said Julie Johnson, general manager of HealthFocus. “Now that connection is definite, and they connect what they are eating with those choices at the shelf.”

Younger consumers also are placing a larger emphasis on sustainability than previous generations. For instance, one study from FMI — The Food Industry Association found that 45% of Gen Z and millennials shop with sustainability in mind, compared to only 14% of baby boomers. Similarly, research from global intelligence company Morning Consult showed more than two-thirds of Gen Z respondents cite sustainability having some impact on their food and beverage choices, and 32% said it has a major impact versus just 17% of baby boomers who felt it has a major impact.

“We are anticipating that sustainability is going to keep accelerating because you just have so many young people that say they care,” Ms. Frey said.

With an uptick in sustainability product claims, NIQ additionally studied which claims are popular among consumers.

“There’s been just an explosion of claims in the store, we’ve had over 100 claims around sustainability, and every month there’s something new popping up,” Ms. Frey said. “Certain words like ‘environmentally friendly’ tend to index higher for those people that tie their health and the planet together.”

Claims like “responsibly sourced” and “zero waste,” also had universal appeal, but others were unlikely to resonate in specific demographics. Carbon claims, for example, are particularly polarizing for consumers who don’t prioritize sustainability or have low awareness of climate issues. Ms. Frey said that leaning into the nuances of packaging language can avoid this polarization while signaling the same environmental benefits, such as replacing carbon claims with soil health ones.

Increased interest in sustainability has not directly translated into more consumers living sustainable lifestyles. NIQ identified limited product choice as one of the major barriers to living sustainably, along with price. More than 40% of consumers said cost was a key barrier, but 65% also said they are willing to choose a sustainable option if it costs more. The company expects the price parity to decline in the coming years, as more products enter the space and erode the price premiums driven by unique claims, said Ms. Frey.

“Today, most consumers realize it is necessary to pay a price premium of some sort for sustainable products,” said Nicole Corbett, vice president of global thought leadership at NIQ. “But, as regulatory mandates dictate transparency, it will be more difficult to justify price premiums as consumer expectations shift to a new baseline.