Human body cannot synthesize Vitamin C because the body lacks an enzyme which is needed at the end of the vitamin C biosynthesis pathway, so we must uptake Vitamin C from foods or take some additional supplements.
举一反三
- 20. Broccoli _____, can prevent the human body from being damaged by oxidant environment . A: is rich in vitamin C B: rich in vitamin C C: be rich in vitamin C D: are rich in vitamin C
- The main source of vitamin D in the human body is （） A: endogenous D synthesized by skin B: vitamin D in egg yolk C: vitamin D in pig liver D: vitamin D in milk
- From the conversation, we know （） is very important for good eyesight. A: Vitamin A B: Vitamin B C: Vitamin C D: Vitamin D
- Oranges are good fruit because they contain a lot of _____. A: vitamin A B: vitamin B C: vitamin C
- Patients with kidney stones should not take vitamin C or vitamin D.