I was a physician in active practice for 25 years, and actively looking for wine allergies. The Fetal Alcohol Syndrome occurs only in the chronic alcoholic. Hard drug use, heavy smoking and undernutrition produce similar fetal defects. So what factor does what is often difficult to determine. For example, there appear to be fewer fetal lung problems with moderate mothers.
More study is needed.
Auto accidents are not increased in areas of high wine sampling. There are wine bars every 200 yards. Yet when statistics are compared to highways of equal density, the level of accidents is not increased. Liver disease is decreasing during a period of increasing wine consumption and decreasing spirits consumption. Everyone knows that cirrhosis is a very serious liver ailment.