Ever wonder why spinach is supposed to be so good for you? Popeye will tell you it's the presence of healthy quantities of iron. But did you know that every gram of spinach also contains manganese, strontium, zinc, uranium and europium - in fact, at least 27 trace elements?
Iowa Science Teachers Journal
© Copyright 1983 by the Iowa Academy of Science
Iowa Science Teachers Journal: Vol. 20
, Article 14.
Available at: https://scholarworks.uni.edu/istj/vol20/iss1/14