Although the phenomenon of transnational families is not new, there are a few features of transnational families that are different than 30 or more years ago. One of those differences is .

answer; ///population;

answer; procedure;

it might look like that the ideal way to research the health effects of trans fats is through a controlled experimental feeding trial. but these kinds of trial have several important limitations that the researcher must look into:

short in duration (this factor usually checks up on the intermediary risk factors rather than the actual outcomes of the disease)

limited dietary changes

only makes use of healthy participants