Don’t forgot SALT. Something essential and something you can’t make. I also stock a lot of tea since that is very important to me and coffee (I buy the freeze-dried bricks at Aldi) for hubby.
I always keep plenty of salt-it will be needed if TSHTF-it has a lot of uses besides food prep and preservation -if you want to tan anything, you need salt for most methods...
The bricks last a long time.
bkmk
Aside from salt, potassium is critically important.
Swanson vitamins sell potassium chloride in bottles as a single ingredient powder.
Most potassium supplements are only 99 mg cause the government restricts it to that. They are afraid of people OD- ing on it I guess.
But the powder allows for a higher dose than taking a dozen pills to get what you need. You can make your own electrolyte solution with that and salt.