Week 3: Micronutrients

Question 1

disease that results from thiamine deficiency

Answer 1

Beri beri

• wet beriberi affects cardiovascular system
• dry beriberi affects nervous system

Question 2

Niacin deficiency and toxicity

Answer 2

1. deficiency
   - pellagra: diarrhea, dermatitis, and dementia and death
2. toxicity at high doses
   - two forms: nicotinic acid and nicotinamide. nicotinic acid associated with toxicity and people experience Niacin flush-flushing of skin, itching, nausea, liver damage

Question 3

Deficiency fo Vit B6

Answer 3

• rare, can occur with isoniazid
• glossitis, stomatitis, seizures, peripheral neuritis, sideroblastic anemia
• nerve damage. individual sensory nerve damage is reversible but ganglia damage is not