Spinach Myth busted by Wikipedia: The cartoon character Popeye is portrayed as having a strong affinity for spinach, becoming physically stronger after consuming it. The commonly accepted version of events states that this portrayal was based on faulty calculations of the iron content.
My general theory is: we should listen to dieticians, but not give them our undivided attention.
Would you please pass the chocolate cake?
Interpret that request as you please!