Fat is bad because It clogs up your blood vessels, placing an extra load on your heart and it increases your risk of diseases like bowel and breast cancer.
Oil is bad for us because it can cause stomachs to hurt and if you use vegetable oil your gonna be okay any oil is safe just don't get the bad ones but if you use any type of oil make sure to read the packaging before using the oil.
Car oil: its good for our cars but its not good for us to use for cooking because you can cause many problems in your body like cancer or you can't breathe and you can end up in the hospital but make sure to use the right oil for your cooking that way you can't get sick.
You should do this by putting the blood sample in a secure container. Then put it in a bag and label the substance. After this take it to the lab and do what is needed for the experiment.
