Final answer:
Niacin toxicity symptoms include diarrhea, fatigue, and dizziness.
Explanation:
Niacin toxicity can lead to various symptoms, with one of them being diarrhea. Other symptoms include fatigue and dizziness. Niacin is an essential nutrient, but excessive levels can result in toxicity, causing these symptoms.
Learn more about Niacin toxicity symptoms here:
https://brainly.com/question/42556568
