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.
Overdoses That Cause Diarrhea. According to the vitamin guide on CNN Interactive's Food Central, excess amounts of vitamin C (ascorbic acid) and vitamin B5 (pantothenic acid) can cause diarrhea. Apart from the discomfort of diarrhea, overdosing on these vitamins is not fatal. Vitamin C and vitamin B5 are are water-soluble vitamins that are excreted from your body by sweat and urine. Unless recommended by a doctor or nutritionist, you should avoid megadoses of any vitamins, minerals or supplements.