Ice cream used to be sold in half-gallons (64oz)
Then it went to 48oz.
Now 42oz.
This has happened to just about all packaged food products.
A silly game to "fool" consumers and where does it end?
Bodybuilding related:

Ends in 5 more years.
Junk was crazy cheap priced. It's more expensive and smaller yet Plebs keep buying it.
It will continue getting smaller and more expensive up until volume drops. The sustainability plan is less consumption, less waste.
You'll see years from now, influencers doing videos about how little protein one needs to grow. It's the truth.