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What Happens If You Swallow CBD Oil?

CBD is quite versatile. One can use it topically, sublingually, ingest, add to various foods, and even vape. There are tens of ways of enjoying the health benefits of CBD. However, specific products are made to be taken in particular ways. Let us discover what happens if you swallow CBD oil.

CBD oil is one of the most common forms of enjoying the health benefits of cannabinoids. It still remains quite popular. Other ways to enjoy CBD are gummies and vaping.

What Happens If You Swallow CBD Oil?

CBD oil is made to be ingested. However, it is a Novel Food that is a food item that people in the UK or Europe have not consumed traditionally in large amounts. If you ingest CBD oil, this will result in mild relaxation. It will also help overcome anxiety and may even help sleep better.

Before we continue our discussion, it is vital to understand that CBD oil is mainly for sublingual use. This is because the bioavailability of oral CBD is very low. Studies suggest that just about 6% of CBD is absorbed via the intestines, and the rest remains unabsorbed. That is why, to experience CBD’s health benefits, one must hold it below the tongue (take sublingually) or vape.[1]

The Food Standards Agency recommends not taking more than 10 mg of CBD a day if taken regularly.[2] These recommendations are based on recommendations that most people can tolerate this dose. Chances of any side effects at these dosages are extremely rare.

However, as you can understand, even if you ingest mega dosages of CBD oil, not much of it will enter the body. Especially if you do not hold CBD oil below the tongue. Therefore, if you swallow even 1000 mg of CBD oil, you will not overdose. Of course, this may cause intestinal irritation, but it is not likely to cause any severe side effects.

Moreover, studies show that CBD is very safe even at mega dosages. Thus, studies show that even taking several thousands of milligrams of CBD is safe and does not cause a high, or dependence.[3]

The truth is that overdosing by ingesting CBD oil is very difficult. This is due to the very low bioavailability of oral CBD.

What Happens If You Take Too Much CBD Oil?

Okay, so what happens if you take too much CBD oil? Well, if that CBD oil was for oral intake, the chances are slim that it would harm health. You might feel a bit more relaxed, sleepy, or dizzy. However, any such effect would be short-lasting. Generally, all one would need is to have some rest to get rid of these side effects.

Why even taking too much CBD oil would not cause side effects? Well, simply because it has very poor bioavailability.[1,3]

In practice, it is very difficult to overdose on CBD. This may be possible only by taking high doses of CBD. Even in those cases, studies show that it is quite safe.[3]

But what if one ingests vaping oil or vaping juice? It is vital to understand that vaping juice is not an oil. It contains rather sugar alcohol, though these might look like an oil. Vaping juices mainly contain PG (propylene glycol) or VG (vegetable glycerine), flavours, and CBD.

If you ingest CBD vape oil from CBD vape pens in large amounts, chances are still slim that it would cause any health harm. This is because PG or VG are very safe for oral intake and are often added to various foods in massive amounts. Further, overdosing on CBD is not possible due to its poor bioavailability.

But, of course, never ingest CBD vape oil. Remember that such oils are for vaping. They have a strong flavour. The chances are high that these flavours may make you dizzy and cause nausea if ingested. These flavours are good for vaping but not for ingesting in large amounts.

The Bottom Line

CBD is quite safe, even when taken at mega dosages. Thus, studies show it is non-toxic even at dosages like 1500 mg or 4000 mg. Hence, overdosing on CBD is only possible if one intentionally takes massive amounts of CBD oil. Even in those cases, it is not likely to cause any severe health issues. It may cause dizziness, nausea, gastrointestinal issues, and some sedation at extremely high dosages. Finally, we strongly recommend following FSA guidelines strictly and limiting your daily CBD intake to 10 mg daily, which is proven safe in the long run.


  1. Millar SA, Maguire RF, Yates AS, et al. Towards Better Delivery of Cannabidiol (CBD). Pharmaceuticals (Basel). 2020;13:219.
  2. Food Standards Agency and Food Standards Scotland update consumer advice for CBD [Internet]. Food Standards Agency. [cited 2023 Oct 21]. Available from:
  3. epidiolex.en.USPI.pdf [Internet]. [cited 2023 Oct 21]. Available from:
Dr Preet Pal Singh Bhinder

This article was authored by: Dr. Preet Pal Singh Bhinder.

This article was peer-reviewed by Dr M Mansoor Siddique (PhD). Dr Siddique has over eight years of experience working with CBD and CBD products.

Disclaimer: All of our products are not intended to diagnose, treat or cure any disease. It is recommended to check with doctor before starting a new dietary supplement program. All CBD products sold have less than 0.2% THC content and abide by both EU an UK law.



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