Food... i think everybody would want food!
All of the above apply to your question
eating
good food is critical to good health because good food :
b. has ingredients that are high in nutrients.
The structure that forms cranial nerve I is the olfactory nerves while forming the 2nd is the optic nerve. Together with retina and olfactory epithelium, all of them are considered part of the Central Nervous System — wherein they synapse directly to the brain without the aid of any ganglia.