Eat Right Practice Exam 2026 – The Comprehensive All-in-One Guide to Master Your Exam!

A positive correlation occurs when an increase in one variable is associated with an increase in another variable. In the context of the question, the statement about the incidence of type 2 diabetes mellitus and central adiposity showcases this concept clearly.

As central adiposity increases, the incidence of type 2 diabetes mellitus also increases. This means that individuals with higher levels of central body fat are more likely to develop type 2 diabetes, illustrating a direct relationship where both variables rise in tandem. This is significant in understanding health risks, especially as obesity is a well-established risk factor for developing type 2 diabetes.

The other choices present relationships that do not exhibit this positive correlation. For instance, the first statement describes a scenario where increased episodes of nausea and vomiting lead to a decrease in weight gain, showcasing a negative correlation. The third option reflects a cause-and-effect scenario rather than a correlation, focusing on the outcome of excess calorie consumption. Lastly, the fourth statement suggests that blood pressure decreases with reduced sodium intake, which also illustrates a negative correlation.

Thus, the choice regarding type 2 diabetes and central adiposity clearly demonstrates a positive correlation.