We know that when making buying decisions, personal health is one of the
strongest motivators for consumers and their families. And while there are many
reasons why brands may be motivated to embrace sustainable features (e.g.,
packaging, materials, etc.) for their consumer products, the health impact of
sustainability may be a strong but largely unrealized motivation for customers
to choose sustainable brands over conventional ones. We are wondering why a
brand’s health story is underutilized and how this can be changed. Would
sustainable brands be leveraging their positive health story more than they do
today if we they knew that demonstrating the health impact of their products is
easier and less cumbersome than you would expect?
Take, for example, chemicals used in traditional packaging materials or as
components of the products themselves (e.g., phthalates, phenols), which have
been associated with adverse health outcomes. Studies demonstrating this linkage
often take many years and are expensive to run, but it is possible to conduct
short-term studies that demonstrate that exposure (based on biomonitoring, which
is the measurement of chemicals in human biological samples such as blood or
urine) goes down when sustainable products are introduced — and back up when
sustainable products are removed. Linking the specific exposures to adverse
health outcomes then begins to tell the brands’ (evidence-based) health story.
And the good news is that these short-term studies can be both cost-effective
and scientifically rigorous.
“Clean” soap (produced without fragrances, dyes, triclosan, chlorine or
phthalates) and flame retardants are powerful examples. Flame
retardants
have been used in consumer and industrial products since the 1970s, including
many products that people come into contact with several times a day — think
upholstered furniture, infant and toddler car
seats,
mattresses, carpets and curtains. Adverse health effects of exposure to flame
retardants include disruption of endocrine, thyroid and neurological function;
impacts on the immune system, and adverse effects on fetal and childhood
development. While many flame retardants have been removed from the marketplace
or are no longer produced, human exposure remains high to new classes of flame
retardants that are metabolized and eliminated more quickly. Studies are
underway to determine if these newer flame retardants may also lead to adverse
health outcomes.
However, a recent
study showed that using
sustainably produced soap, along with other behavioral interventions including
guided
handwashing
and house cleaning, reduced exposure by close to half in a sample of 32
individuals over just a two-week period. This dramatic decrease in exposure is
just one example of how sustainably made products can generate potentially
significant health gains in a short period of time.
Another example links the elimination of plastic packaging to a decrease in
potentially harmful exposure to
BPAs —
another endocrine disruptor, which produce adverse developmental and
reproductive effects in both humans and animals. Endocrine disruptors may be
most dangerous during prenatal development and early infancy, when organ and
neural development are still underway. Another recent
study showed that replacing
plastic-packaged foods with “fresh foods” (avoiding contact with plastic
packaging and non-stick cookware, stored in glass and BPA-free containers)
resulted in a significant decrease in urine levels of endocrine disruptors such
as BPA after only 3 days. Many companies are already working on alternatives to
plastic
packaging,
because we know how bad single-use plastics
are
for the environment and our oceans. But no brands are talking about the
potential health gains for consumers who make the switch to more sustainable
packaging options, and how quickly those gains could be realized for individuals
and families.
Rigorous research doesn’t need to be expensive or time-consuming. These studies,
and several others like them, demonstrate that efficient and cost-effective
research can evaluate practical interventions that can have real-world health
impacts. Brands that are committed to sustainability could show that their
products help reduce exposure to harmful substances, leveraging their commitment
to sustainability and expanding it to a commitment to consumer health. In the
race for “eco bragging rights,” credible data from such analyses can be used as
compelling evidence in marketing campaigns and brand strategies to motivate
consumers to choose sustainable brands over traditional ones.
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Dr. Herbstman is an environmental and molecular epidemiologist whose research area focuses on the effects of prenatal exposures to environmental pollutants on child health outcomes and the molecular mechanisms underlying these associations.
Published Dec 4, 2019 7am EST / 4am PST / 12pm GMT / 1pm CET