Natalie Brown was born in Timmins, Ontario, Canada. She is known for her work on How to Lose a Guy in 10 Days (2003), Dawn of the Dead (2004) and The Strain (2014). See full bio Â». Timmins, Ontario, Canada.
Itching skin from caffeine sensitivity is most likely caused by an allergic reaction in the body. There's a difference between being sensitive to caffeinated beverages and foods and having an allergy. Itching skin is a sign of an allergic reaction caused by increased histamine levels in the skin. If you notice that your skin becomes inflamed, itchy and irritated after consuming caffeine, make an appointment with an allergist for testing and a clinical diagnosis.
Caffeine causes calcium to be excreted in the urine and feces. For every 150 mg of caffeine ingested, about the amount in one cup of coffee, 5 mg of calcium is lost. This effect occurs even hours after the consumption of caffeine. One study of postmenopausal women found that those who consumed more than 300 mg of caffeine lost more bone in the spine than women who consumed less.