THC, yes or no?

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Plants from the cannabis family contain more than one hundred cannabinoids. Those who have received the most attention in recent years are CBD and THC. This website extensively discusses the effects of CBD. Research shows that CBD can have beneficial effects on health. CBD is, in contrast to THC, a legal substance in many countries. This is a factor that contributed to the great popularity of CBD. Cannabinoid extracts that contain no or very little THC can be sold freely in many places. However, some people think that by focusing so much on CBD, we neglect another beneficial substance in cannabis plants, known as THC. The question is whether you could achieve even better results with CBD when you use it in combination with THC. In this article we address this question by examining the opinions of some famous names in the world of cannabinoids. We examine who these people are and what their answer is to the question: THC, yes or no?

Wernard Bruining

Wernard Bruining is the founder of the Dutch “Stichting Mediwiet” (a foundation that advocates the medicinal use of cannabis). With its foundation Bruining advocates the use of marijuana for medicinal purposes since the 1990s. In 2009 he published a book entitled “Healing Hemp”, which, among other things, describes how you can make and use cannabis oil. The book contains fourty interviews with patients who claim they benefited from cannabis oil. Bruining sees cannabis oil as a “folk medicine” and a possible solution to the rising cost of health care in the Netherlands. Bruining believes cannabis oil can help people to become more independent of the (expensive) regular health care.

He speaks of a group of patients who he calls “perish cases” who do not respond well to the established medication for their ailments. A large portion of these people could benefit from the use of cannabis oil in his opinion.

The website provides information on weed oil and its applications as well as  a guestbook where users of cannabis oil can share their stories. Furthermore, there are lots of links to YouTube videos in which patients with various ailments share their experiences with cannabis oil.

The foundation’s website mainly speaks of cannabis oil. In the FAQ section however, it is recommended that new users start off with CBD oil. in 25-50% of cases this should be effective, according to the foundation. If someone uses THC oil (containing lots of THC and low CBD) it’s also recommended by the foundation to add CBD to this. THC and CBD may have a synergistic effect when used together. CBD may also counteract some of the psychoactive effects of THC.


Rick Simpson

The Canadian Rick Simpson is currently one of the biggest advocates of the use of cannabis (oil) as a therapeutic medicine. In recent years he has become a well-known name in the world of cannabis, especially since the documentary “Run From the Cure”. Simpson has experienced the beneficial effects of cannabis himself and has provided many other people with cannabis oil. Simpson has been making cannabis oil himself, which he calls “Rick Simpson oil”. This oil usually contains a very high percentage of THC and also several other cannabinoids (which is generally referred to as “full spectrum”). On his official website ( this oil is not sold, but he encourages people to make Rick Simpson oil themselves. There is a section on the website which describes in detail how to make these oils.

Simpson does some pretty bold claims about the medicinal properties of cannabis. He is convinced that it can cure cancer. Simpsons’ assumption seems primarily based on his own experience with and the effects he has seen in others. He also refers to scientific literature, but draws conclusions that the authors of these articles themselves do not*.


The fact that Rick Simpson draws conclusions that stretch too far does not mean that everything he says must be dismissed as nonsense. Simpson seems to be someone with good intentions who is not seeking for money or fame. Also, he has personal experience with cannabis oil and has seen many others take cannabis oil as well.

Based on his experience, what does Simpson say about the ratio of THC and CBD? Firstly Simpson says he has never encountered a natural cannabinoid that he didn’t like. He then expresses that oils with a high content of CBD, and low levels of THC are somewhat overvalued in his opinion. At the same time he acknowledges the efficacy of CBD against certain diseases (such as epileptic seizures). The message that Simpson wants to convey seems to be that all cannabinoids are good, but that THC is the most important one. Rick Simpson oil primarily contains a very high percentage of THC (up to 90%).


* On we have dedicated a separate page to CBD and what its application to cancer may be.


Dr. William Courtney

Dr. William Courtney became interested in the beneficial effects of cannabis after reading the article “Brain’s Own Marijuana” which was published in 2004 in Scientific American. His current wife had severe symptoms of the disease lupus at the time, but was cured by Courtney’s treatment with cannabis, or so they claim.

Courtney is convinced that cannabinoids are an important and necessary source of nutrients. According to Courtney cannabis can best be consumed in the form of raw cannabis juice. He recommends taking a large amount of cannabis on a daily basis, containing 250-500 milligrams of the cannabinoid THCA. The problem is that an amount of cannabis of this size would not be well-tolerated when it has a psychoactive effect. In other words, these juices should not contain too much of the psychoactive compound THC. Courtney recommends using whole plants to extract the juice (i.e. both the flowers and the leaves). He proposes a couple of ways to ensure that the amount of THC remains low in the juices. He recommends using undried cannabis that has not been exposed to heat. THCA is converted into THC when the cannabis plant is heated. So the juices that Courtney advises to use contain little THC but much THCA. They also contain other cannabinoids, including CBD.

Courtney’s theory is controversial. There are hardly any studies that support the advantages of his method. Moreover, it is not exactly the easiest way is to consume cannabinoids. First, the dosage Courtney recommends calls for a huge amount of raw material. Moreover, it is also important to use organic cannabis, to prevent you from inadvertently consuming pesticides and other substances that may have health risks. Finally, the preparation of raw cannabis juice requires a lot of time and attention, in which it is particularly important to make sure that the content of THC stays low.



THC: yes or no? We have seen different thoughts on this matter. Both CBD and THC have been found to have a positive effect on our health. Additionally, there are over a hundred other cannabinoids that have been studied less extensively. Plant from the cannabis family are extremely complex because of the large amount of various substances they contain. Definitive conclusions about how these ingredients create a combined effect can’t be drawn at this time yet. What can we do until then? On this page we have explored the view of some famous names in the world of cannabinoids. One possibility is to trust one of these persons and follow the path that they suggest. We can also try to inform ourselves. For this reason, always refers to scientific research when it comes to specific diseases. Finally, experimentation can be a practical solution. What helps is that CBD is a very safe substance. Users report very few side effects and overdose has never been reported. THC is slightly different in this regard. Although there are also  no known cases of THC overdose, a (high) dose of THC may have a very unpleasant effect. Our advice would therefore be to start with an extract of only CBD and other cannabinoids. If this does not result in the desired effect THC can be considered as an addition. When someone starts using THC it is recommended to start with a low dose of THC and slowly increase this dose until it results in the desired effect.



1 Comment

  1. Ik maak THC en CBD olie zelf, volgens de Simpson methode. Dat doe ik, sinds de kanker van mijn oma. Het bleek toen erg lastig, aan THC olie te komen of tegen absurde prijzen. De overheid zou het daarom meer toegankelijk moeten maken…
    Zelf gebruik ik het voor mijn slaapproblemen en mijn partner voor de spierziekte. Het is goed tegen vele ziektes en gewoon plantaardig!

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