There are several errors in that article. He was correct when he stated that females have a larger proportion of body fat as compared to males. In effect, that leaves males with a higher proportion of body water into which alcohol (EtOH) can redistribute and minimize blood alcohol content.
The article mentions "dehydrogenase." I know he's referring specifically to Alcohol Dehydrogenase (ADH). The author says that it's a "gastric or stomach enzyme." Indeed gastric ADH is elaborated by the stomach lining but he fails to mention hepatic ADH produced in the liver which is the most active of the classes of ADH. He also didn't discuss first pass (stomach) and second pass (liver) EtOH metabolism.
More recent research than cited in that article suggests that young women express lesser amounts of gastric ADH than young men but the reverse is true in middle-aged individuals. Those findings should have been mentioned in the article.
The author is correct in his statement about food content in the digestive system but he's assuming that women typically eat very little and skip meals. He mentions that women absorb nearly 30% more EtOH into their bloodstream than a male of the same height and weight. He might be referring to the young female here. I can't comment on hormonal effects on ADH as my specialty is not endocrinology. My understanding of endocrinology is limited to the expression of various endocrine disorders and their medical and surgical management.
I was being very generic with the remarks I made in that post and I erred in the specific type of ADH and not specifying age, Mr Mustard. There are many factors which come into play with alcohol consumption and blood alcohol levels. Age, size and weight are the most obvious. Different populations and genes for classes of ADH are the less obvious.