by James Porter
For years, a curious idea has circulated in health circles—popularized in part by voices like Andrew Weil—that certain populations, particularly Polynesians, may carry higher body weight without the same health risks typically associated with obesity. At first glance, this sounds like a contradiction of everything we teach in workplace wellness programs.
But the truth is more nuanced—and far more useful for those of us working with diverse employee populations.
Let’s start with what gave rise to this idea. Research in Epidemiology has shown that some Pacific Islander groups tend to have higher lean body mass—that is, more muscle and bone—than other populations. This means that at the same Body Mass Index (BMI), a Polynesian individual may have less body fat than a European or Asian counterpart.
That matters because BMI, for all its convenience, is a blunt instrument. It doesn’t distinguish between fat and muscle. For a strength-trained employee or someone with naturally higher muscle density, BMI can misclassify them as “overweight” or even “obese” when their metabolic health is actually quite good.
For workplace wellness professionals, this should sound familiar. How often have you seen a physically fit employee flagged as “at risk” based on BMI alone?
However—and this is critical—the broader claim that Pacific Islanders are “obese but healthy” does not hold up under scrutiny. In fact, many Pacific Island nations now experience some of the highest rates of chronic disease in the world, including Type 2 Diabetes and Cardiovascular disease.
So what’s going on?
The answer lies in the interaction between biology, environment, and time. Traditional Pacific Island diets were rich in whole foods—fish, root vegetables, fruits—and daily life involved high levels of physical activity. Over recent decades, many of these communities have undergone rapid dietary and lifestyle changes, with increased reliance on processed foods and more sedentary routines.
The result is a mismatch: bodies that may be metabolically efficient at storing energy now exposed to environments of caloric abundance and reduced movement.
For trainers and wellness professionals, there are three key takeaways:
1. Move Beyond BMI as a Standalone Metric
BMI is useful at a population level, but it can be misleading for individuals. Whenever possible, incorporate additional measures—waist circumference, body composition, fitness levels, and metabolic markers. A more complete picture leads to better coaching and fewer false assumptions.
2. Focus on Behaviors, Not Just Body Size
Health outcomes are driven by patterns—nutrition, movement, sleep, and stress—not just weight. Two employees with the same BMI can have dramatically different risk profiles depending on their habits. This is especially important in workplace settings, where sustainable behavior change is the goal.
3. Be Culturally and Biologically Aware
Your workforce is not homogeneous. Differences in genetics, body composition, and cultural norms all influence health. Effective programs meet people where they are rather than forcing everyone into the same metric-driven box.
Ultimately, the so-called “Pacific Islander paradox” isn’t a loophole in the laws of physiology. It’s a reminder that health is more complex than a number on a chart. As professionals, our job is not to oversimplify—but to translate that complexity into practical, compassionate guidance.
And in today’s workplace, that may be the most valuable metric of all.
Erica Tuminski
Author