NANP Board Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the NANP Board Exam. Study with detailed questions and explanations on key topics. Enhance your understanding and boost your confidence for the exam.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following foods has been found to slow down the p450 enzyme detoxification process?

Blueberries
Grapefruit
Oranges
Spinach

The correct answer is: Blueberries

Grapefruit has been found to slow down the P450 enzyme detoxification process. This is primarily due to compounds in grapefruit, particularly furanocoumarins, which can inhibit certain cytochrome P450 enzymes, particularly CYP3A4. This inhibition can lead to increased levels of certain medications in the bloodstream, as the liver's ability to metabolize these substances is diminished. While blueberries, oranges, and spinach are all nutritious and have health benefits, they do not have the same documented effect on the P450 enzyme system as grapefruit. Therefore, grapefruit is recognized for its significant interaction with the detoxification processes in the body.