Final answer:
The Dietary Guidelines for Americans report is based on the best evidence available, but new information could change its recommendations.
Step-by-step explanation:
The correct answer is: c. It is based on the best evidence available, but new information could change its recommendations.
The Dietary Guidelines for Americans report is a comprehensive set of evidence-based recommendations that aim to promote healthy eating patterns to prevent chronic diseases and maintain overall health. These guidelines are developed by a panel of experts in the field of nutrition and are based on the best available scientific evidence. However, as new research and evidence emerge, the recommendations may be updated and revised to reflect the latest information.
For example, in the past, the guidelines recommended limiting cholesterol intake to 300 milligrams per day. However, based on new research, the 2015 guidelines removed this specific limit as studies showed that dietary cholesterol has less of an impact on blood cholesterol levels compared to previously thought.