A stool culture is done to: 1  Find the cause of symptoms. 2  Find and identify certain types of organisms that are causing infections or diseases. 3  Identify a person who may not have any symptoms of disease but who carries bacteria that can spread infection to others. 4  Find out if treatment for an infection has worked as it should.
Meat may stay in the intestines for 24-72 hours and still depend on its type. Likewise, red meat in particular takes 1-3 days to complete the digestion process because of fat content and high protein, according to Lisa Cicciarello Andrews of University of Cincinnati.
Best Answer: Alright Joe, fat takes the longest to digest. Sometimes up to 4-6 hours. Proteins are next. I'm talking about proteins from meat and stuff. They take roughtly 3-4 hours to fully digest. NOTE: whey protein is digested in about 20-30 minutes, casein about 7 hours. Veggies will take about 30-45 minutes.Fruits about 20-30 minutes to digest. That's why I always eat fruits first, then veggies, then meat, then the fatty part of the meal if there is any.hey take roughtly 3-4 hours to fully digest. NOTE: whey protein is digested in about 20-30 minutes, casein about 7 hours. Veggies will take about 30-45 minutes. Fruits about 20-30 minutes to digest.