Researchers examined fruit and nutrient intake for 3, 700 children from 98 schools in the north of England during 2004.

BBC: NEWS | Health | Free school fruit 'little impact'

Nutritionists say that limiting caloric intake in a compressed time frame can lead to nutrient deficiencies, causing decreased immune function, dry skin and loss of muscle or bone density, for starters.

CNN: The #NYFW diet: Part of the job?

Living in a zero-gravity environment poses risk of nutrient deficiency and bone loss, so keeping close tabs on food intake in space is crucial.

FORBES: NASA Asks The 'Crowd' To Help Track What Astronauts Eat