Weed will stay in the system of skinny girl or guy for up to 7 days. Small amounts of weed metabolites will remain in the system for a longer time.
But after seven days, they will not be detectable in the urine.
This is true for occasional smokers. The regular smoker will require more time to get weed out of the system.
In hair, weed can be detected for up to 3 years. The exact time depends on how often you cut your hair.
Skinny people and THC
Skinny people have an advantage – they have low body fat. Thus not much THC can stick to their fat cells.
Additionally, skinny people have a faster metabolism, and they can metabolize and remove weed faster from their systems.
So THC tends to stay in their system for a shorter period.
If you don’t know what is THC and why it “sticks” to fat, read this guide: THC Detox Guide. How To Get Weed Out Of Your System
Today, we’ll explain to you how long weed stays in the system of skinny girl or guy and what factors affect this time.
Let’s turn to science and calculate how long it will take to remove weed completely from a skinny person’s body.
Before we do any calculations, you need to understand several concepts.
How much THC in the body
We inhale only about 50% of the formed THC. 30% is destroyed by burning. Others are lost in sidestream and incomplete absorption in the lungs.
Then only a small proportion reaches body circulation due to what is called the first-pass metabolism.
As a result, heavy users receive ~25% of THC while occasional users get ~12%.
Next, there’s a term – ‘half-life.’ It means the time it takes for half of THC in the body to be removed.
According to a study, the excretion half-life during the first five days following weed intake is approximately 31 hours for infrequent users.
And, for heavy users, half-lives would be longer than ten days.
There’s no way to calculate the amount of THC precisely. Everybody is different, and there are too many factors that influence THC metabolism. So we need to make some assumptions.
Let’s say we are calculating for the following person:
Jenifer: Skinny girl, occasional smoker. Jenifer smoked 1g of marijuana with 20% THC content.
That means there was 200mg of THC in a joint.
According to the research (that we mentioned previously), 24mg of THC will be in her body after smoking this joint.
According to another study that will help our calculations, if there is 27mg of THC in a joint, the amount of THC-COOH in a smoker’s urine would peak at 180 ng/mL after 4 hours.
Using cross-multiplication, after smoking 200mg of weed, the concentration of THC-COOH in the urine of Jenifer would be 1330ng/ml.
- After 26 hours, the concentration would be 665ng/ml.
- After 52 hours, it would be 332ng/ml.
- After 130 hours, the concentration will drop below the cutoff level of 50ng/ml of a urine immunoassay drug test.
It will take two more days for the THC-COOH concentration to drop below 20ng/ml – the gas chromatography urine drug test’s cutoff level.
Conclusion: it would take about seven days to significantly lower the concentration of weed metabolites in skinny girls’ urine to below the detectable level of urine drug tests.
How to speed this process
There are three ways to speed up THC detoxification:
- Burning body fat
- Increasing the activity of enzymes
- Breaking the enterohepatic circulation
If you want to know more about this, read this guide: THC Detox Guide. How To Get Weed Out Of Your System
Since we are talking about skinny person burning body fat is not an option.
So we have only two options to speed up THC detoxification.
St. John’s Wort
This is the most famous herb for inducing enzymes responsible for the metabolism of THC. It is well researched, and several studies confirm its properties.
Take 300mg daily with food.
It is an absorbent. It will prevent THC metabolites in the intestines from being reabsorbed back into the blood.
Take 1000mg of activated charcoal twice daily.