How much food and water?

Hi guys, I'm new on here so I'm not sure if this thread has been done before so apologies if it has.

I'm thinking of doing a 14 day bike tour in a few months - i've never done more than a weekend trip before - so I'm pretty clueless when it comes to prep ideas etc was hoping to get some good advice on here.

Basically aiming to do around 80k a day for the duration.

How much food and water shoud I be consuming per day? Does it matter what sort of food I eat i.e budget wise I was thinking a loaf of bread and jam etc just to refuel but should I only look to eat 'good' foods like pasta?

Also, asides from a tent (camping out for duration) sleeping bag and stove, is there any other essential kit?