Wednesday, July 18, 2012

Micronutrient supplementation: more is not better.

A recent editorial in the NEJM reminds of a truism that once an adequate concentration of a nutrient has been achieved, additional intake has no effect. So, unless one has a known deficiency of a nutrient, there is no good reason to take in more of it. When attracted by purported benefits of supplements, one should also beware of potential ill effects and unnecessary expense.

Wednesday, July 11, 2012

Goosey Goosey Gander wanders no more…

The summer edition of Sanctuary, the journal of the Massachusetts Audubon Society, presents a series of articles on bird flocks. There one can read a remarkable “explanation” for the current huge population of yearlong resident Canada geese that haunt our playing fields, open parks, and golf courses. Years ago, the rapid decline and threatened extinction of the species along the Atlantic coast was blamed on extensive market hunting. In response, instead of banning or restricting the shooting, they clipped the wings on midwestern geese and brought them here where they remained and raised their young year round. Now hunting, herding dogs, and coyote decoys can’t get rid of them!