Foods to Avoid Before a Drug Test for THC

(Last Updated On: 21.04.2023)

With marijuana becoming decriminalized (and sometimes legalized) in many states, it’s important to know the foods that help you pass a drug test and what foods to avoid before a drug test for THC.

Some people use marijuana medically, and the medical properties of natural marijuana can be very beneficial to some people — but often, those patients still need a way to keep it out of their system for more than a week.

So, if you have been asked to take a drug test and wonder, “is it possible to pass a drug test if you have eaten high-fat foods?” this article has everything you need to know. So, continue reading to know foods to avoid before a drug test for THC.


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What Is a False Positive Drug Test Result? Is It a Rare or Common Case?

A false positive drug test result is when a test returns positive, but the person tested did not have any drugs in their system. This can happen for several reasons and can be very frustrating for someone accused of something they didn’t do.

Drug tests use antibodies to detect the presence of specific drugs in your system. The antibodies are more sensitive than the human eye, so that they can detect tiny amounts of drugs in your urine, blood, or saliva.

For Example 

False positives are most common with urine drug tests because they test for antibodies rather than actual drugs. Antibodies are proteins produced by the body’s immune system to fight off foreign substances like bacteria or viruses that may be present in the bloodstream.

Drug Testing Procedures

Drug testing is frequently used in the United States in many ways.

  • 5-Panel Drug Tests: PCP, marijuana, cocaine, amphetamines, and opiates are all sampled.
  • 10-Panel Drug Test: it is used to detect all of the above, as well as barbiturates, benzodiazepines, methadone, methaqualone, and propoxyphene.
  • 9-panel drug test: it is the most popular and effective drug test available. It can detect the presence of THC (cannabis), Cocaine, Amphetamines (meth & speed), and Methadone.
  • At home drug test: Another common way for a drug test is the at home drug test. It is a simple swab test that can detect the presence of drugs in your system. These tests are relatively inexpensive, allowing you to perform the testing process in the privacy of your own home.

What Medications Test Positive for Methamphetamines?

Methamphetamines are the most addictive drugs in the United States. They can be found in prescription medications and over-the-counter medications. Some of the most common drugs that test positive for meth include:

  1. Adderall
  2. Ritalin
  3. Vyvanse
  4. Dexedrine
  5. Nuvigil
  6. Provigil

False Positive Drug Testing Reasons

There are many reasons someone might test positive for drugs even though they haven’t consumed them recently enough to register on a THC drug test. This can happen if:

  • The person has used other drugs (such as meth) that can cause a false positive on certain tests.
  • Someone has used medications that contain ingredients that mimic other drugs (such as codeine).
  • The person had been exposed to secondhand smoke from marijuana or tobacco products before their urine test sample was collected and tested.

What Are The Products Or Remedies That Can Cause False Positive Drug Tests?

Buns with Poppy Seeds & Drug Test

Poppy seeds and poppy buns are common ingredients used in baking. They contain an ingredient called morphine, a drug derived from the opium poppy. This can cause false positive results on a poppy seed (opiates) drug test panel even if you are not using any illegal substance.

Morphine also treats severe pain that other medications cannot manage. It has long been used to treat chronic pain and as an opioid substitute for people who have become tolerant to other opioids.

Its Working Mechanism

Poppy seeds contain traces of opium, which is why they can cause false positives on drug tests. When you eat poppy seeds, they get absorbed into your bloodstream through your intestines and reach the liver, where enzymes break them down into various chemicals, including morphine.

This chemical then gets eliminated from your body together with urine and other waste products through the kidneys and bladder. If you have eaten poppy seeds just before taking an employer-mandated drug test, then there is a possibility that it will show up on the test results as an opioid.


There are many different kinds of antidepressants, but the three most frequently given are tricyclic antidepressants, serotonin-norepinephrine reuptake inhibitors (SNRIs), and selective serotonin reuptake inhibitors (SSRIs). SSRIs and SNRIs raise serotonin levels in the brain.

Tricyclics increase levels of norepinephrine and serotonin. These drugs can cause false positives for THC because they can be detected in your system up to two to three weeks after use.

Its Working Mechanism

Antidepressants block an enzyme called monoamine oxidase (MAO), which is responsible for metabolizing drugs within the body. When MAO is blocked, drugs linger longer in your system and are more likely to be detected on a panel for the marijuana drug test.

Tonic Water

Tonic water is an alcoholic beverage made from quinine and carbonated water. Quinine is a chemical used to treat malaria. It is also the main ingredient in most over-the-counter drugs that help with leg cramps.

Many people use tonic water to mix gin or vodka with, but it isn’t recommended since it contains high amounts of alcohol and can cause health problems.

Its Working Mechanism

Tonic water contains quinine, which affects how your body processes drugs. It can cause false positives on drug tests by interfering with the test’s ability to detect THC in your system.

How much tonic water you drink will determine how long your body metabolizes the quinine, ranging from 30 minutes to 1 or 2 hours, depending on how much you have consumed.

Hemp Seeds

Hemp seeds are a popular ingredient in many nutritional supplements, but they can cause a false-positive result on drug tests.

Its Working Mechanism

The active ingredient in hemp is THC, tetrahydrocannabinol, the same chemical found in marijuana. If you’re taking hemp seed oil or eating hemp seeds, there’s no way to know how much of this substance is in your system because it doesn’t register on most tests.

What Time Before a Drug Test Should You Avoid Such Things?

The best defense for a positive drug test is to know what to do if you are tested and how to protect yourself. You can’t pass a drug test if you don’t follow the estimated timelines to avoid false positive results:

  • For 24 hours before collection and up to collection time, abstain from alcohol, coffee, coca tea, smoking, and vigorous activity.
  • For 48 hours before the test, avoid eating avocados, bananas, eggplant, pineapple, plums, tomatoes, or walnuts.

Do Edibles Show Up in Drug Tests?

Yes, edibles can show up in drug tests. THC is fat-soluble, which can be stored in your body’s fatty tissue for days or weeks after consumption.

How to Legally Dispute Drug Test Results in the USA in 2023? Procedure

Several protocols can be used to dispute drug test results in the USA in 2023 legally. The most common is to request a retest of your sample using an independent lab.

The following steps will take you through the process of requesting a retest:

Step 1
First, you must file a complaint to the company that performed the initial test. This can be done by contacting them directly or filing a claim through LegalZoom. If you choose this option, we will help you prepare all the necessary paperwork and guide you through each step of the process.

Step 2
Once your complaint is filed, the lab should send you forms to fill out and return along with any relevant information they require, such as medical records or statements from witnesses.

Step 3
Once you have returned these forms, they will review your complaint and contact you with instructions on how to proceed next if necessary (e.g., if any additional documents are needed). This may take several weeks, depending on how busy they are.

Step 4
If everything checks out and there is no merit to your claim, then nothing further will happen on their end, and your case will be closed without further action required from either party involved.


These are just some foods you should avoid before a drug test. Please avoid these before doing one because it will help you passing a drug test. If you know anybody who has been unsuccessful, please send them this article. We hope you found this article helpful; if you have any further questions, don’t hesitate to get in touch with us via e-mail; we will respond to you ASAP.