3. The Essential Amino Acids which build part of proteins can be formed by human body.

　　4. The ultimate cause of kwashiorkor is lack of protein, rather than lack of carbohydrates.

　　5. There are generally two different kinds of vitamins, they are __________________________.

　　6. Night blindness is a disease normally caused by lack of _____________.

　　7. One of the main function of vitamin D is to prevent adults from ________________.

　　8. Although the human body produces vitamin D normally, it fails to do so if there is not enough ______________.

　　9. The reason why vitamin C is seen as an antioxidant is that it drives ___________ out of the body.

　　10. If you are in lack of B group vitamins, you should turn to ________________________.

　　1. (N)

　　2. (N)

　　3. (N)

　　4. (Y)

　　5. (fat soluble vitamins and water soluble vitamins)

　　6. (vitamin A)

　　7. (fracture / breaking their bones)

　　8. (sunlight / sunlight exposure / exposing to sunlight)

　　9. (toxins)

　　10. (plant and animal tissues involved in metabolism / liver, yeast and dairy products)