“The Last Supper”? Right – that fresco painted in the late fifteenth century by Leonardo on a refectory wall in a convent in Milan. Researchers (and brothers) Brian and Craig Wansink were wondering how to compare food-portion sizes of today with those of centuries ago, and hit upon the idea of going to paintings from past periods to get that information, eventually settling on using Leonardo’s famous work.

They published their findings here, but unless you happen to be really into obesity studies, to the point of having a paid subscription to the Journal, that won’t tell you much. But the FR journalist has read the article, so you don’t have to. And as you probably would expect, the Wansink brothers’ careful measurements of plate and portion sizes in Leonardo’s work revealed that plate sizes have increased by 66 percent over the last five centures and portions by 69% (oh, and the size of bread-rolls by 23%).

                          

Still, Winslow makes sure to qualify his reporting, pointing out for example that “[t]he study . . . has just been submitted to a medical journal and thus hasn’t yet cleared rigorous peer review that precedes publication.” And it’s good that he does so, since today Line Ziegler Laursen of the Danish newspaper Jyllands-Posten takes up the same subject.

Her headline does read “DNA decides whether diet-cures work,” yet she also goes on to discuss how Danish researchers have investigated the same question and remain a bit more skeptical. Arne Astrup, known as “one of Denmark’s slimming-experts,” is quoted here that, although results of the Danish research do come out along the same lines, the statistical relation they discovered “is relatively weak, and therefore it is unreliable for researchers to guarantee patients a large weight-loss if they know their DNA.” Rather, the Danish scientists are of the opinion that successful weight-loss is still a matter of at least three or four different factors, not just the patient’s DNA. They have put in a request to Stanford to review the data from the tests conducted there, in order to look into the question further.

                          

Over here in Europe, the only on-line publication that I can catch in my RSS-net handling the subject is Flanders’ leading newspaper, De Standaard. Inevitably, the piece (no by-line, just credited to the Belga news agency) is entitled Americans keep getting fatter; and the accompanying photo meant to illustrate the theme does get things rather ass-backwards. This is a somewhat briefer treatment than Neergaard’s, but it nonetheless is able to repeat for De Standaard’s readers all the main statistics: 23 states listed as having even more obese people than last year, Mississippi as always at the top of the list, etc. The Flemish piece does add a bit of new material about the impact that the authors of the report think the current financially-troubled times will have on the situation. You might think that impact on people’s health would be favorable (folks not being able to afford so much food, etc.), but you would be wrong. Rather, cheaper food tends to be less healthy, and plus we can also expect the rolls of Americans not covered by any health insurance at all to rise, in parallel with cases of stress and depression.