This in in one of ZK’s links,
So I guess the debate on liver enzymes is still open?
One well–characterized relationship between genes and alcoholism is the result of variation in the liver enzymes that metabolize (break down) alcohol. By speeding up the metabolism of alcohol to a toxic intermediate, acetaldehyde, or slowing down the conversion of acetaldehyde to acetate, genetic variants in the enzymes alcohol dehydrogenase (ADH) or aldehyde dehydrogenase (ALDH) raise the level of acetaldehyde after drinking, causing symptoms that include flushing, nausea, and rapid heartbeat. The genes for these enzymes and the alleles, or gene variants, that alter alcohol metabolism have been identified. Genes associated with flushing are more common among Asian populations than other ethnic groups, and the rates of drinking and alcoholism are correspondingly lower among Asian populations (8,9).
http://pubs.niaaa.nih.gov/publications/aa60.htm
Count up the instances of non-committal bet hedging language in the government report on proof of a genetic link. That alone fuels skepticism, especially in light of all the “take backs” of previous proofs, and how badly they were on the housing bubble.
