You need all of them to stay alive.
While peanut butter does offer quite a lot nutritionally, eating only one thing is never really a good idea.
Let’s take a look at how food works, in general, to see why it is that man cannot survive by bread alone or in this case … peanut butter.
Can I lose weight just eating peanut butter?
Summary Some research suggests that eating peanut butter and peanuts may suppress appetite by increasing fullness. What’s more, eating protein-rich foods like peanut butter can reduce appetite and preserve muscle mass during weight loss.
Can you live off of peanut butter sandwiches?
You can, as the straight dope pointed out, live off of nothing but bread until the scurvy got you. However, bananas are hella packed with vitamins (for a fruit) while peanut butter has a lot of protein and a few missing elements from bananas. So yes, you could survive a while off of such a diet.
How long can you survive on peanut butter?
It also could be a great morale booster for those that may be getting board with their survival diet. Peanut butter is also very useful as an ingredient in baking. Shelf life is excellent – coming in between 1.5 to 2 years or more for a jar. I have found that some brands are lower than others – so shop around.
Is it OK to eat peanut butter every day?
There are a lot of good things about peanut butter, but also a few negatives. It’s fairly rich in nutrients and a decent protein source. Even though you shouldn’t use peanut butter as a dominant food source in your diet, it’s probably fine to eat every now and then in small amounts.