We spoke with a pair of cousins, one an Army veteran, the other a current member of the Navy, about some of the toughest situations they've found themselves in. Army basic training, according to Mates, is all about discipline. It's about knowing your role and not stepping out of line. And if you do, well, you pay a price. Mates said, In basic training, they call it 'getting smoked.' Push-Ups until you puke. I was always getting smoked.
Caffine is the most popular and probably the most studied of all drugs, and serious adverse effects in real life have resisted demonstration. There are pop claims about caffeine interfering with absorption of iron and vitamin d; if there were any real effect on real human beings, it would be obvious by now.
The Effect of Caffeine on Vitamin Absorption. Caffeine is a part of the breakfast meal of many Americans. Many also take a multivitamin supplement daily as a part of their morning routine. Not many people are aware that taking vitamins at the same time as a cup of coffee or tea can interfere with the body's absorption of many necessary nutrients.