Fat-soluble means a substance that is soluble in oils or fats. The vitamins A, K, D, and E are all fat- soluble vitamins.
steriod
fat-solube is another name for lipophilicity a ability of a chemical compound to dissolve in fat,oils,lipids,and fat-solube non-polar solvents like hexane
Drink plenty of fluids. Work out uptil 2 days before your test, after that you rest, but keep drinking fluids. The reason you should work out is that THC is fatsoluble, i.e it's stored in your fat, so by working out you may get rid of some of the outer layers with fat containing the THC. I'm not a physician of any kind and this is not something that can guarantee you results, but several sites list it as a way to go. Also, to get better results you can chuck in on some Vitamin B2 which colours your urine, that way by drinking a lot before your test your sample won't look "tampered" with, but might still make you pass with flying colours, in a manner of speaking...
Nothing. THC is fatsoluble, it's stored in your fat and can't be "flushed out", per sé. However, unless you are a heavy smoker, three weeks should be time enough for the THC to leave your system by itself.
The Sun gives off light. The body uses light to convert 7-dehydrocholesterol into pre-vitamin D3. Pre-vitamin D3 forms in to cholecalciferol, vitamin D3. Vitamin D3 is brought to the liver were it forms 25-hydroxyvitamin D. Finally, it is brought to the kidney to form 1,25-dihydroxyvitamin D, the active form of vitamin D.