"In the first week after the new rules we literally had customers with calculators out. It was a real novelty. And for the first two to three weeks..."

"... people would opt for the lighter dishes. For instance, orders for our mother butter chicken dish fell but orders for our lower-calorie agra chicken dish rose. But after about three weeks everyone got fatigued with it and we are now back to normal. It hasn’t made any difference to sales at all."

Said restaurant owner Nisha Katona, quoted in a London Times article about the calorie counts that have been required in the U.K. since last month.

The article cites a study of American restaurants with calorie counts that "in the first month, diners opted for dishes with an average of 60 fewer calories but after a year, the average reduction had fallen to 23 calories." And, we're told, the main difference is that people are taking more time to figure out what to order.

And here's another article on fatness in the London Times today: "Ancients believed in survival of the fattest/For most of human history food was precious and plumpness was something to be proud of, but then fashions changed" by Ben Macintyre:

Thrifty genotypes among the hunter-gatherers, who could store fat efficiently, were favoured by evolution.... The traditional desirability of excess flesh was reflected in social habits, politics, literature and arts, from Rubens to Shakespeare to Dickens. Scrooge is thin, in contrast to Joe in The Pickwick Papers, “a wonderfully fat boy”.

“Let me have men about me that are fat,” Shakespeare’s Caesar declares, while the dangerous Cassius “has a lean and hungry look”. Falstaff, the most famous fat man in literature, is loveable and trustworthy because he is stout....

There were exceptions: the Spartans ostracised fat men; Socrates danced every morning to keep himself trim; Hippocrates correctly warned that “Corpulence is not only a disease itself, but the harbinger of others”...

So! Socrates danced every morning?

But what dance did he do? 

I consult the text ("Symposium" by Xenophon):

At this point the boy performed a dance, eliciting from Socrates the remark, “Did you notice that, handsome as the boy is, he appears even handsomer in the poses of the dance than when he is at rest?”

“It looks to me,” said Charmides, “as if you were puffing the dancing-master.”

“Assuredly,” replied Socrates; “and I remarked something else, too,—that no part of his body was idle during the dance, but neck, legs, and hands were all active together. And that is the way a person must dance who intends to increase the suppleness of his body. And for myself,” he continued, addressing the Syracusan, “I should be delighted to learn the figures from you.”

“What use will you make of them?” the other asked.

“I will dance, by Zeus.”

This raised a general laugh; but Socrates, with a perfectly grave expression on his face, said: “You are laughing at me, are you? Is it because I want to exercise to better my health? Or because I want to take more pleasure in my food and my sleep? Or is it because I am eager for such exercises as these, not like the long-distance runners, who develop their legs at the expense of their shoulders, nor like the prize-fighters, who develop their shoulders but become thin-legged, but rather with a view to giving my body a symmetrical development by exercising it in every part? Or are you laughing because I shall not need to hunt up a partner to exercise with, or to strip, old as I am, in a crowd, but shall find a moderate-sized room large enough for me (just as but now this room was large enough for the lad here to get up a sweat in), and because in winter I shall exercise under cover, and when it is very hot, in the shade? Or is this what provokes your laughter, that I have an unduly large paunch and wish to reduce it? Don't you know that just the other day Charmides here caught me dancing early in the morning?”

“Indeed I did,” said Charmides; “and at first I was dumbfounded and feared that you were going stark mad....”