Every paragraph has a flair of scientism and “technology will solve everything, don’t you worry.”
While ignoring basic physical fact. ( like the intermittence of renewable. And the scarcity of material used in battery manufacturing )
Your source do talk about the introduction of tinned and canned meat.
I haven’t find ratio or quantity. But furthermore I find this bit problematic in the context of this conversation.
“ This period was, nutritionally speaking, an island in time; one that was created and subsequently squandered by economic and political forces”
In the light of this last paragraph, it seems incorrect to use this source to qualify the diet or the ( nebulous ) “past”. It seems to apply only for the Victorian era.
The Gillet jaune started this way. Very true. But also self organise to be something vastly different pretty quickly. Maybe 20 days into that months long movement ( it’s not officially over; like Korea war … )