TSI Nutrition & Dietary Guidance 2

Question 1

A commercial driver on an overnight route wants to avoid drowsiness after a 2 a.m. meal. Which choice is best?

Accepted Answer

A light meal of lean protein, whole grains, and vegetables

Answer

Light, balanced meals avoid the post-meal sluggishness that large, high-fat meals cause during night shifts.

Question 2

According to the Dietary Guidelines for Americans, adults should limit added sugars to less than what share of daily calories?

Accepted Answer

10%

Answer

The Dietary Guidelines recommend keeping added sugars below 10% of daily calories starting at age 2.

Question 3

What is the recommended upper limit of daily sodium intake for most adults under the Dietary Guidelines?

Accepted Answer

2,300 mg

Answer

The Dietary Guidelines advise keeping sodium under 2,300 mg per day, about one teaspoon of salt.

Question 4

Which is generally considered a safe daily caffeine limit for most healthy adults, according to the FDA?

Accepted Answer

400 mg

Answer

The FDA cites 400 mg per day, about four or five cups of coffee, as generally not linked to harmful effects.

Question 5

A screener notices a mid-afternoon energy crash after a lunch of white bread and soda. What most likely causes it?

Accepted Answer

A rapid blood sugar spike followed by a drop

Answer

Refined carbohydrates and sugary drinks raise blood glucose fast, then insulin brings it down sharply, which causes fatigue.

TSI - Transportation Security Institute Certification Practice Test