View Single Post
Old January 24 2013, 08:29 AM   #64
Location: Kentucky
Re: Obesity linked to a gut bacteria

Regarding the mass and energy equation, and disregarding intestinal nuclear reactions:

mass_in = mass_out + mass_stored

energy_in = energy_out + energy_stored
which is

food + water input + oxygen input = pee + poop + sweat + CO2 output + weight_gain


food energy value (when burned with oxygen) + work_input (massage therapist, etc) = (poop + pee) energy value + work_output + waste heat
+ stored_energy_for_zombie_attacks

I hate to ask this, but have any of the diet and nutrition experts made people poop into a calorimeter and burned it to see what the output energy was? If not, this thread has enough people for a rough stab at a study. As we cook our poos and record the results with an iPhone ap we'll write, should we post the inflow versus outflow or keep that kind of private?
gturner is offline   Reply With Quote