Quote Originally Posted by ThePeacockNamethTom
Niacin helps, although there are conflicting reports of its successfulness; that is because, however, people use Niacin as if it was a course-of-action and not something to be used to supplement what you are already doing. Niacin will dilate your blood vessels and give you that Niacin flush and itch. But in doing this, the capillaries which go the fat-cells of your body are dilated from the typical single-file transport of blood cells (the capillaries are that thin), to a 2-3 transport of blood cells at a time. It's a major improvement and helps rid the body of marijuana and other biological waste products. It is, after all, the byproducts that the standard tests search for.

P.S.
If they try to supervise, which some may, ask them to GTFO; they don't have the right to invade your privacy, especially so blatantly.

P.P.S.
Ron Hubbard (yes, as in "L. Ron Hubbard," the science-fiction author accredited for the development of Scientology) created a purification program called, conveniently, the "Ron Hubbard Purification Program," or somesuch. It involves proper Niacin use and could be helpful. Google it.

This is such a myth, niacin will not help remove THC metabolites from your body, period. The only thing you got right was this rumor was started by L Ron Hubbard, who also claims to be an expert in about 20 fields. He has had no medical training whatsoever and to be a part of his church, it costs you about $20,000. Do you really want to trust your drug test to Scientology? I think not.

To the OP, because you are a little overweight, you may take longer to get clean than the average person. Someone told you to use a home test, that was the best info given. Don't overdue the water until the day of the test. There is no point.