Unless you're a theoretical water container and you burn the food to heat yourself it's much much much more complicated than that https://www.scientificamerica

Unless you're a theoretical water container and you burn the food to heat yourself it's much much much more complicated than that https://www.scientificamerican.com/article/science-reveals-why-calorie-counts-are-all-wrong/ https://www.scientificamerican.com/article/science-reveals-w... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3396444/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3396444/