Does this help?
You raised a number of fundamental points in you message.
Herbs have a number of effects on the biliary system but they cannot make the gallbladder contract any more than it is capable off. Generally, a healthy gallbladder contracts 50% and 70% but it contracts a single time in order to pressurise the biliary system. There are two schools of thought to obtaining the maximum contraction:
1. A single dose with the help of a cholagogic herb like turmeric, dandelion and ginger. However it has also be found through medical experimentation the sulphur which is present in the
Epsom Salts may also cause a “maximum” contraction because it mimics the hormones that cause the gallbladder reflex.
2. Multiple doses at 30 minute intervals have shown through medical experiments to cause different levels of gallbladder contraction and some people don’t get a maximum contraction until the 3rd or 4th dose. However, there are limits to the number of doses because ultimately when fatty acid acids reach the ileum of the small intestines the gallbladder response will be diminished by the release of hormones. Note; that all experiments are carried out of healthy individuals with no sign of gallbladder problems.
The gallbladder also contracts about 30% in the early morning that it does in the evening when it is fully expanded.
Just as important as the gallbladder contraction is the rapid-filling cycle which restores the gallbladder volume with fresh unsaturated bile.
I don’t understand the second point, about “how long it might take for the oo induced bile to reach the gallbladder after ingestion”. You can expect the olive oil potion’s effect on the biliary system to be completed in 20 minutes. This is based upon the nominal contraction rate of the stomach and the flow through the pyloric sphincter.