Excess Vitamin A

Excess Vitamin A

Nutrition

Carbohydrates, fat and protein

Carbohydrates and sugars
Fats and lipids
Proteins

Nutritional disorders

Excess Vitamin A
Excess Vitamin D
Vitamin D deficiency
Vitamin K deficiency
Kwashiorkor
Marasmus
Iodine deficiency
Zinc deficiency
Beriberi
Folate (Vitamin B9) deficiency
Niacin (Vitamin B3) deficiency
Vitamin B12 deficiency
Vitamin C deficiency
Wernicke-Korsakoff syndrome
Fat-soluble vitamin deficiency and toxicity: Pathology review
Water-soluble vitamin deficiency and toxicity: B1-B7: Pathology review
Water-soluble vitamin deficiency and toxicity: B9, B12 and vitamin C: Pathology review
Zinc deficiency and protein-energy malnutrition: Pathology review

Key Takeaways

Excess vitamin A, also referred to ask hypervitaminosis A, refers to the toxic effects of ingesting too much of preformed vitamin A. Excess vitamin A causes problems such as liver damage, joint pain, headache, dry skin, alopecia, and birth defects which is the reason why it is contraindicated in pregnant women.