The authors contend that all addictions spring from a ""genetic error"" in the metabolism of simple carbohydrates (primarily sugar, honey and white flour) plus an inherited tendency toward depression which, they say, is caused by a dysfunction of the adrenal glands. A sugar addiction, thus, leads to all the others--from cigarettes to heroin. When simple carbohydrates are ingested by genetically disposed addictives, blood-sugar levels rise rapidly. This produces a rush of energy and a feeling of euphoria. But then, the blood sugar quickly plummets to well below normal, thus producing a craving for another ""fix."" Some genetically addictive people turn to excessive use of substances other than sugar that relieve the withdrawal symptoms. These may be caffeine, nicotine, alcohol (100% simple carbohydrate), legal or illegal depressants, chemical stimulants or opiates. The treatment pretty much boils down to massive doses of vitamin C, high protein, amino acid and multivitamin supplements, and exercise (which, in itself, can produce a healthful ""high""). When necessary, medications such as Librium and/or appropriate antidepressants are prescribed during the withdrawal period. Phelps also implies--but never specifically states--that recovered addicts should forever eschew simple carbohydrates to avoid the seesaw blood-sugar syndrome. Armed with this book, can one shake off an addiction? The answer appears to be a qualified yes for sugar, caffeine, nicotine and marijuana--which involve no possibility of life-threatening physical reactions during withdrawal.