Again, clinical studies failed to substantiate this claim. Caffeine does not adversely affect pregnancy when consumed in moderation. Major studies found no birth defects associated with caffeine consumption, even among heavy caffeine consumers. Worldwide investigations into breast-cancer deaths found no relationship between caffeine intake and breast cancer. The American Medical Association's Council on Scientific Affairs found caffeine consumption and the development of fibrocystic breast disease aren't related.
Addiction means a dysfunctional use of a drug that has taken control of a person's life.
Dependence is associated with cravings, steadily increased doses and difficulty in stopping use. Caffeine is not addictive, nor does it fit the criteria of dependency, since only minor side effects are realized when it is withheld. The Food and Drug Administration and AMA consider caffeine to be a safe ingredient. Good to the last drop Danny Thomas' old closing line on Maxwell House coffee commercials may be a little more correct than he thought. Caffeine is an ingredient in medications used to treat migraine headaches.