I would also add that the Chicken Eggs in the USA are basically terrible compared to Swiss Bio Eggs.
Here one can purchase Swiss Farm fresh eggs (10-12) for about 6 francs or so maybe a bit more. They will have a golden sunshine like yolk and cook well and leave one satisfied.
In the US the crap they are calling eggs these days should be illegal. A dozen eggs for $1-2... yah right???
Best I could find in the local area of the US I visited recently, was Pete and Gerry's Organic Eggs about $6-7 for 12.
https://peteandgerrys.com
They were about 95% the same as a person can get from Swiss Bio Eggs.