User blog:Draltaica/Food and Water

I started working on revising the daily Food Point requirements. I based it on Kleiber's law, adjusting the mass-independent normalization constant so that a 58.967kg character needs 2 FP a day.

Then to figure out the standard mass of a Food Point I looked up the weight of a MRE and that you are recommended to eat 3 MRE a day, getting 937.5 grams.

To figure out the minimum mass of a FP a watched Thunderf00t's video on Breatharians. Based on how much Carbon Dioxide you exhale in a day and how much sugar it takes to make that much Carbon Dioxide I figure the minimum amount is 428.5 grams. Interesting note: the PnP standard FP is only 113.398 grams. half of a 2000 cal diet of dehydrated beef weighs 229.485 grams. Half of a 2000 diet of pure fat is only 111.111 grams.

Next was water consumption Base. On lost weight I figure you breath out at lest 300 grams of water. You urinate 1.4kg of water a day. That gives me a base water consumption of 1.7kg of water a day. Taking in account body mass that gives us:

Then I just needed to calculate how much water you use exercising and sweating Googleing "how much do you sweat" gave me 1.1kg of water per hour. Using the surface area of a sphere to it's volume I figure an additional:

I used thunderf00t's video again for water used while exercising and the same surface to volume formula as a base and including the water for sweating is get: