Nutrition & Dietary Guidance Flashcards

Why can heavy alcohol use before a shift impair job performance even after the person feels sober?

Answer: Alcohol disrupts sleep and causes dehydration and lingering impairment

Alcohol fragments sleep and causes dehydration, leaving hangover effects that reduce alertness.

Which vitamin is produced by the body with sunlight exposure, often low in night-shift workers?

Answer: Vitamin D

Skin makes vitamin D from sunlight, so limited daylight exposure can lower levels.

Which choice best reflects the Dietary Guidelines advice on grains?

Answer: Make at least half of grains whole grains

The Dietary Guidelines recommend that at least half of grain intake come from whole grains.

Energy drinks are a poor substitute for sleep mainly because they:

Answer: Mask fatigue temporarily without restoring alertness or reaction time fully

Stimulants can hide sleepiness briefly, but only sleep reverses the effects of sleep debt.

Which mineral helps carry oxygen in the blood and, when low, can cause fatigue?

Answer: Iron

Iron is needed for hemoglobin, and deficiency causes anemia and tiredness.

Which eating habit most increases the risk of heartburn for workers who lie down to sleep right after a shift?

Answer: Eating a large, fatty meal just before lying down

Large, fatty meals right before lying down promote acid reflux.

Which strategy best helps a traveler-facing employee avoid unhealthy vending-machine choices?

Answer: Planning and packing balanced meals and snacks in advance

Planning meals ahead makes healthy choices available when time and options are limited.