5 doctors weighed in:

I am 300 plus pounds and I smoked marijuana less than a gram about 18 days ago is it out of my system yet?

5 doctors weighed in
Dr. J.J. Rodos
Psychiatry
3 doctors agree

In brief: No

30-30 days is required to clear the body of marijuana.
It is stored in the body's fat cells and slowly clears.

In brief: No

30-30 days is required to clear the body of marijuana.
It is stored in the body's fat cells and slowly clears.
Dr. J.J. Rodos
Dr. J.J. Rodos
Thank
Dr. Alan Wartenberg
Addiction Medicine

In brief: Almost certainly yes

A single use of marijuana, no matter how heavy someone is, is unlikely to be detected after 2-3 days, and certainly should be negative after almost 3 weeks.
Regular use of marijuana however, can remain detectable, particularly in people with a lot of fat (where thc metabolites are stored) for many weeks and even months.

In brief: Almost certainly yes

A single use of marijuana, no matter how heavy someone is, is unlikely to be detected after 2-3 days, and certainly should be negative after almost 3 weeks.
Regular use of marijuana however, can remain detectable, particularly in people with a lot of fat (where thc metabolites are stored) for many weeks and even months.
Dr. Alan Wartenberg
Dr. Alan Wartenberg
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