He is eating healthy food because he wants to get skinny.
(Idk if this was how i was supposed to answer but I hope this help!)
Because they are aside from the nervous system, the most important systems in your body. Without these systems you would not be able to circulate nutrients, expel and transport wastes like CO2, And just about keep you alive. In healthcare, you come to know that without a heart beat or an airway, your patient will die.
Dicke says this because the world’s population is growing and soon there will not be enough meat for everyone.
They are fat molecules that have no double bonds between carbon. Because they are saturated with hydrogen.
hope that helps.