Answers to Common Nutrition Questions

Premier Health providers answer frequently asked questions about nutrition.

What happens to the body when caffeine is consumed?

Caffeine is a stimulant that affects the central nervous system, according to the Food and Drug AdministrationOff Site Icon (FDA).

Though caffeine’s main affect is to make your body feel more awake and alert, according to the FDA, it also can cause the following issues:

  • Dehydration
  • Dependency
  • Dizziness
  • Headaches
  • Heartburn
  • High blood pressure
  • Jittery, shaky feelings
  • Nervousness
  • Rapid heart beat
  • Trouble sleeping
  • Uneven heart rhythm

The effects of caffeine usually last about four to six hours, and can cause an overdose if consumed in extremely high levels, according to the FDA.

For more information about how caffeine affects your body, talk with your physician.

Learn more:

Source: Aleda Johnson, MD, Liberty Family Medicine; Mark Ringle, MD, Beavercreek Family Physicians; Joyce Tebbe, ACNP, Covington Family Care; Stephen Liptak, PsyD, Upper Valley Outpatient Behavioral Health; Joseph Allen, MD, Family Medicine of Vandalia; Chandan Gupta, MD, Monroe Medical Center; Paul Jennewine, MD, Middletown Medical Group; Kimberly Bethel, Trotwood Physician Center; Mansi Amin, DO, SureCare Medical Center; Geetha Ambalavanan, MD, Fairborn Medical Center; C. Joe Northup, MD, Premier Weight Loss Solutions; Faisal Khatri, MD, Premier Family Care of Mason