Why was spinach selected for Popeye to eat for his bursts of energy?

The cartoon character Popeye the Sailor Man is portrayed as having a strong affinity for spinach, becoming physically stronger after consuming it. The commonly accepted version of events states this portrayal was based on faulty calculations of the iron content. In the version, German scientist Emil von Wolff misplaced a decimal point in an 1870 measurement of spinach's iron content, leading to an iron value 10 times higher than it should have been, and this faulty measurement was not noticed until the 1930s. This caused the popular misconception that spinach is high in iron that makes the body stronger. (Wikipedia)

1. Green vegetables are good for health

2. Spinach is one of the most nutritious green vegetables.

3. Children do not like spinach.

To make kids eat spinach