how much heat is produced when the body metabolizes a gram of trioleylglycerol?

I know that the combustion of triolelglycerol is exothermic with an enthalphy change of 9 calories per gram of trioleylglycerol molecules, so the combustion will release heat to the surroundings. I need help writing this into some type of formula.

At least theoretically the heat released to the surrounding/g will be the as released to the body on combustion. I don't know how efficient the body is at metabolizing this material.

trien... + O2 ==> CO2 + H2O + heat.
Plug in the formula and you can balance the C, O, H.