Casey Means on obesity: what the evidence says · JRE #2210
SUBJECT: OBESITY
Not a true/false call. Every claim is logged with its sources; read the exhibits below.
74 percent of Americans are overweight or obese 50% now of American adults have type 2 diabetes or pre-diabetes. These were diseases where there was 1% of Americans in 1950 had type 2 diabetes. Now it's 50% of Americans have pre-diabetes or type 2 diabetes.
What the evidence says 01 / RECORD
Federal data broadly support the magnitudes cited, though the numbers are rounded up. NIDDK (drawing on NHANES 2017 to 2018) reports about 73.1 percent of US adults are overweight or have obesity (30.7 percent overweight plus 42.4 percent with obesity), close to the 74 percent stated; CDC's most recent cycle puts the combined figure at 72.4 percent. On diabetes, NIDDK reports roughly 11.6 percent of the total population had diabetes (2021) and that more than one third of adults (about 97.6 million, near 38 percent) had prediabetes, so the combined adult total lands near the 50 percent claimed once the two groups are added. The historical framing is also broadly supported: CDC long-term surveillance shows diagnosed diabetes was well under 1 percent when national tracking began in 1958, consistent with the roughly 1 percent in 1950 figure. Caveats: these totals lump in prediabetes, a category whose clinical significance is debated, and the historical and current figures reflect all diabetes rather than type 2 alone (though type 2 is roughly 90 to 95 percent of cases).