The dietary guidelines for americans advise that americans should consume at least of their grains as whole grains.

The tide three guidelines for Americans advise that Americans should consume at least 50% of their grains and whole grains.

Explanation:

The health department of the federal government has issued certain guidelines in order to ensure that people are aware of what all should their diet consist of.These guidelines are different for people of different ages and different activity levels. The guidelines regarding the consumption of whole grains applies equally to people from all the age groups and activity levels.