And that's your choice. Mars decided that they were going to limit serving sizes to 250 calories or less, and products shrank or were dropped in line with that.

This was a better idea than simply saying a single use package really contains more than one serving in it to look like the company was being responsible.

You choosing to eat more is just that, your choice. It has nothing to do with any company.

Why stop there or wait for the shrink to come to the conclusion? At least it's easier to eat 1 than 0.5 and store it though, and more work to open 2 than 1.

I'm not sold the magnitude of the effect is really worth much though.

You could always eat two. But most people are inclined to use one as a "serving".

The same thing has been said about pints of ice cream. They are (or were?) labeled as being 2.5 servings - reasonable - but lots of people just ate them whole and then complained that they had too many calories.

I like the way you think!

And get them delivered to your door in 30 minutes!

That's my hunch as to what's driving this. Some suit at Mars calculated that shrinking the size of a bar will compel enough consumers to purchase an additional bar, thus selling 2 bars instead of one, essentially doubling the revenue from many customers. The suit probably got a huge promotion/bonus for this incredible work, benefiting all of humanity. /s