I studied this topic a bit in a Food &amp; Culture class last semester and this is the first time I&#x27;ve heard of mutton flaps or turkey tails being a likely culprit with regards to obesity in Pacific Islanders.<p>My understanding is that most experts put it on (a) the introduction of high-sugar&#x2F;starch&#x2F;carb processed foods (after all, isn&#x27;t that where most experts pin obesity now?) and (b) the &quot;Thrifty Gene&quot; theory:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Thrifty_gene_hypothesis" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Thrifty_gene_hypothesis</a>