One disadvantage of the blood-brain barrier is that it keeps out most forms of nutrition.

Name: One disadvantage of the blood-brain barrier is that it keeps out most forms of nutrition.
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The blood-brain barrier is highly selective and regulates the movement of molecules, including nutrients, into the brain. While it does limit the entry of certain molecules and pathogens, it does not prevent the passage of essential nutrients like glucose, amino acids, and fats.

One Disadvantage of the Blood-Brain Barrier Is That It Keeps