Question 1: Vitamin B12 and iron both do play key roles in anemia that may manifest itself in the body, as you have discussed. Vitamin B12 is needed in the body and is found in a variety of foods (Three of the B Vitamins, n.d.). What are some of the key food sources of vitamin B12?

Question 2: A common deficiency disease of vitamin C and iron is anemia, as you have mentioned.  Just as it can be dangerous to have too low of an intake of a vitamin or mineral, it can be just as problematic to have too much of a vitamin or mineral. For example, too much vitamin C can occur from taking too much of the vitamin over time or if an overdose of a supplement containing vitamin C occurs (Grodner et al, 2016 p.118). That being said, how likely is it for vitamin C toxicity to occur? Is it possible for vitamin C toxicity to occur from dietary intake alone?