Provides only about half a persons needs
Vitamin K is the fat-soluble vitamin produced by bacteria in the gastrointestinal tract that plays a key role in blood clotting.
Food and fluids go in...Feces and fluids come out... The GI tract is an overall workhorse to convert ingested food and fluid to energy and stored energy, as well as get rid of wastes.
Vitamin K and two b vitamins-niacin and thiamine
Approximately 50-60% of the body's vitamin K requirement is derived from GI tract bacterial synthesis. The remainder comes from dietary sources.
Vitamin K is a fat-soluble vitamin produced by bacteria in the GI tract. In needs fat (lipids) to be absorbed by the intestines. You do not need to add extra Vitamin K.
These would be water soluble vitamins, such as the B-vitamins and Vitamin C.
No, a drug that is 100 percent absorbed from the gastrointestinal (GI) tract would not necessarily have 100 percent bioavailability. Bioavailability is affected by factors such as first-pass metabolism in the liver, which can reduce the amount of the drug that reaches the systemic circulation unchanged. Thus, even if a drug is fully absorbed, its bioavailability may be less than 100 percent.
Peristalsis Peristaltic contractions
The stomach has the thickest walls and the strongest muscle in all the GI tract organs. : )
The GI (Gastrointestinal) tract or the Digestive Tract
The anus
GI tract, GIT, digestive tract, digestion tract, alimentary canal