A Missouri father was shocked when he received a letter from one of his daughter's teachers that scolded him for not packing his 2nd grader a "proper" lunch.

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A substitute teacher identified as N. Krueger wrote, "Dr. and Mrs. Puckett, the cafeteria reported to me that Alia's lunch today included four chocolate bars, a bag of marshmallows, Ritz crackers and a pickle. Please see that she packs a proper lunch tomorrow. Parent signature requested."

Dr. Justin Puckett, who is double board certified in osteopathic family medicine and obesity medicine, posted the letter to his Facebook page and wrote back, "Request declined."

Puckett and his daughter, Alia, who is a 2nd grader at Kirksville Primary School just outside St. Louis, Missouri, appeared on "Fox and Friends Weekend" today to discuss this "food fight."

"I packed four pieces of ham, pickles, a cheese stick, four marshmallows in a ziplock bag and one chocolate bar," Alia explained.

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"The real issue to me here isn't the letter," Puckett said. "It's just more of the overarching theme that sometimes we as parents feel that ... other people are trying to intrude into way we parent our children."

Puckett asserted that the Healthy Hunger-Free Kids Act championed by Michelle Obama paints with too broad of a brush.

For example, he said, a high school athlete has vastly different caloric needs than someone who is very sedentary.

"To paint those food guidelines with one big brush isn't my recommendation."

Watch the clip above.

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