The term “designer drugs” refers to drugs that are created in a laboratory (typically, an “underground,” or secret, illegal lab). A designer drug is created by changing the properties of a drug that comes from a plant—such as cocaine, morphine, or marijuana—using the tools of chemistry.
D. Nicotine is frequently even MORE addictive than the others.
The way to keep your plate not overflowing (aka not overeating/healthy portion sizes is is to use a food pyramid.