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.
A Mayo Clinic study found that the average time food spends in the large intestine varies by gender: 33 hours for men and 47 hours for women. Your digestion rate is also based on what youâve eaten. Meat and fish can take as long as two days to fully digest. The proteins and fats they contain are complex molecules that take longer for your body to pull apart. By contrast, fruits and vegetables, which are high in fiber, move through your system in less than a day.