Final answer:
The statement highlighting the high sugar content in vending machine junk food could validate the claim for a junk food ban in schools, aligning with research linking such sugars to health risks.
Step-by-step explanation:
The statement that junk food sold in vending machines at schools contains excessive amounts of sugar and high fructose corn syrup certainly supports the claim that junk food should be banned from schools. This is in line with research indicating a link between high consumption of high fructose corn syrup and obesity, as well as other health-related issues. Additionally, it highlights potential contradictions between what students learn about healthy eating and the food options actually available to them at school. Considering the notion that obesity is influenced by diet and the types of foods easily accessible to children, this fact could serve as a valid counterclaim to arguments against a junk food ban in schools.