I heard somewhere that canning reduces the nutritious content of your foods by more than 50%.....is that true or not?

I don't know numbers but I would doubt 50%.

No, not that much. I looked into it once, and although I dont remember the number, it wasnt bad. Even years later.

For most of us that would b a good thing. Lol

I am going to research this over the next few days....so far looking @ canned tuna vs foil packed tuna the canned @ 4oz drained has the same nutritional value of foil packed 3oz drained....that is 25% less. I will check chicken later.

Trying to figure out the best foods/ways to preserve for bad times..

I think some nutrients are more sensitive to heat "canning" than others.I have always heard that even just cooking vegetables you lose some nutrients over eating fresh.Advantage to canning is storage,,even if you do lose a bit of nutritional value.

The good news is, the stores have plenty of canning jars again.

steaming removes very small amts

boiiing removes much more nutrients.

Is there a better way for non electric extended storage than canning?

Freeze drying is one of the better ways. My son and I found a can of freeze dried pork chops in an old trappers cabin about 10 years ago. The can was very old. It didnt have a date, but it had to be decades old. The meat looked and tasted fresh after it soaked for an hour.

A good friend bought one of those home freeze drying units the Mormons make. It works well, but he has had to replace the pump. Apparently they have a new type of pump that is better now.

Thanks I'll look into it

I do not think so but I have electric. Dehydrating leaves more nutrients is what I am understanding...

85 grams of canned chicken- 15 grams protein and 1.5 grams fats, 80 calories.

85 grams grilled boneless/skinless chicken breast- 28 grams protein and 2.7 g fats, 128 calories.