Moooo.....?

In your long term, worst case scenario, have you given any thought to dairy products?  And how you're going to replace your source when the, to make a bad pun, current source dries up?

Most of those early settlers took some way to produce dairy with them.  For good reason.  Dairy provides a bunch of vitamins we need, calcium we have to have for our children to grow tall and strong and it's fairly calorie dense and from it we get things like butter, buttermilk, cheese and cream.

This is an area that we personally haven't found a solution for, this post is merely to get you thinking about it as well.

As we think on it, after people's food supplies run low, things like cows and goats, our primary sources of milk are going to become so much BBQ.  Very few people are going to starve while their cows walk around fat and sassy.  They're going to get out the butcher knives and have some steak.

And long term unless they're dying of starvation, it's one of the worst things they can do with those animals.

We full envision there not being a dairy animal remaining for as far as the starving eye can see and the hungry feet roam. 

Our hope is that eventually, such animals will be recovered from distant farms and free range lands once the immediate danger of them being eaten is past.

Otherwise you can expect your children to be small, have weak/brittle bones and in general be malnourished.

Just the calcium alone in milk is needed for -

Hormone and enzyme production
Muscle contractions
Heart function
Blood clotting
Bones and teeth

A lot of the above is because calcium, and potassium, are needed for proper nerve impulses which dictate things like contaction of muscles including your heart which is kind of an important muscle.

Things like Tums or similar ant-acids contain calcium in low dosages and have a pretty long self life, 5 years by the bottle and who knows how long in reality. 

Laying in a stock of things that help replace what you're very likely to not have such as dairy products is something you should give serious consideration to.