Why would we die if we lived on bread, water, sugar, & olive oil for 90 days besides the lack of Vitamin C?

Only 90 days? You wont have any survival trouble, lack of minerals and vitamins affect you after years I think.Why would we die if we lived on bread, water, sugar, %26amp; olive oil for 90 days besides the lack of Vitamin C?
Bread and water used to be the diet of religious people that were fasting. Also some prisoners back hundreds of years ago were only fed bread and water for extended periods of time. I belive a human being might last six months of such a diet before falling ill and needing more nutrients in his or her diet. But a lack of protein and other vital nutrients passing along the enzymes to the cells in the body could cause death by basically the cells in your body not getting the right nutrients. I believe it would put too much of a strain on all the muscles in your body and your heart.Why would we die if we lived on bread, water, sugar, %26amp; olive oil for 90 days besides the lack of Vitamin C?
You would probably live:


The lack of a complete protein is a problem.


It also depends on the type of bread.


You would perhaps suffer:


Scurvy


Kwashiorkor


Edema
I don't think we would, long as we had those things. It would be food, after all. But we would have to have water, too. We couldn't go with out water, very long.
Because there is no proteins listed in your diet. Human body cannot synthesize all 20 amino acids but it must supply some of them from external sources. And the enzymes or hormones which contains these essential amino acids could not be made if not taken from outside. Eventually your entire system will start to malfunction.
Boredom.
you wouldn't
You wouldn't die. But you wouldn't feel very well. Enzymes are the little machines that do work for your body; send signals, digest food, etc.. They are made of proteins and you need to eat proteins in order to make new enzymes. Enzymes also need vitamin and mineral cofactors to work. At the end of 90 days you would not feel very well and your body would have started to eat its own muscle to scavange for protein. Sounds good if you're trying to lose weight until you realize that your heart is a muscle. Your brain is more important in the chain of command in your body and it will eat your heart in order to survive. Sick huh?