We've usually factored in a food stop around lunch and the evening (shop or pub). We 'bought' enough for breakfast the night before.  

I eat every hour or so on the bike then have a good feed in the evening and my normal breakfast. In total more than double what I normally would. Even after long tours eating that much I don't put on weight and may lose a little. 

Eat too little and kms will feel hard work.

Posted by: DaveyBoyWonder

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I fancy doing some bike packing this year - nothing outrageous but York up into the Moors or the Dales, get tea somewhere (I'm not faffing with a little stove!) before a night camping and then home the following day.

Is there a list of must-haves anywhere? I guess minimum:

- as small/packable a sleeping bag as possible

- tent/tarp

- something to kip on

- change of clothes/dry stuff/waterproof etc

- bags for the bike to keep it all in

I personally find the weather windows where the weather/insectproofing of a tent is outweighed by the benefits of a tarp are few and far between.

For your purposes it seems like a decent kit list. You'll find from experience if there's things you'd like to bring/leave but basically staying warm/dry when you sleep is the main thing and everything else is a preference.

As for food quantity, that's a bit of a personal thing. I personally struggle even in normal life if I'm not fuelled properly so I eat enough on bike tours to give a horse diabetes. Some folk are built differently to that and can get away with less.

I eat every hour or so on the bike then have a good feed in the evening and my normal breakfast. In total more than double what I normally would. Even after long tours eating that much I don't put on weight and may lose a little. 

Eat too little and kms will feel hard work.

My watch told me a few weeks ago that day's calorie output was over 1300 kCal compared to the expected exercise output of about 130kCal. So I assumed that since I'd exercised about 10x more than expected then I could also eat 10x more than expected! 😀