Dangerous Thymoquinone level for human

Who is providing the accurate information?

There is a global demand for Black Seed Oil with high levels of Thymoquinone (TQ). However, numerous companies, particularly those from India, have been falsely claiming exceptionally high TQ levels like 10%, 15%, or even 20% on their product labels. In contrast, BioNatal LLC asserts that the maximum TQ content in Ethiopian Black Seed Oil is 4.64%. This raises the question of who is providing accurate information.

BioNatal LLC has undertaken the responsibility of conducting thorough analyses to ascertain the truth. By examining just two types of Black Seed Oil and conducting several analyses, they have made a couple of significant and startling discoveries:

  1. TQ plays a vital role in our immune system, but it is essentially an acidic substance.
  2. Like any acidic substance, there is a threshold beyond which TQ ceases to be a pure essential oil and becomes harmful.
  3. The critical level of TQ is determined to be 8.5% in each milliliter of Black Cumin Oil.

Therefore, it is crucial to rely on BioNatal LLC's findings to determine the accurate TQ levels in Black Seed Oil, as they are the only company that has taken the initiative to conduct comprehensive analyses and uncover the truth.

Testing process

Now, allow us to elucidate our actions and the process through which we arrived at this remarkable revelation. On occasion, we noticed individuals expressing concerns in the comments sections of various social media platforms, claiming that Black Seed Oil possesses acidic properties and poses a potential danger. Initially, these remarks were largely disregarded, as for over a decade, no significant negative feedback had been received regarding this product within the global industry. On the contrary, the internet abounds with an abundance of positive and exceptional reviews highlighting the numerous benefits of Black Seed Oil. Nevertheless, we resolved to investigate the alleged acidity of the oil and its underlying reasons.

To conduct our experiments, we obtained two distinct oils derived from Nigella Sativa seeds, one sourced from Ethiopia and the other from Egypt. The first oil exhibited a prominent bitter taste and possessed a dark hue, while the second oil boasted a golden color, with a hint of bitterness and a floral aroma. Acknowledging the superiority of Ethiopian oil in terms of Thymoquinone (TQ) content and its heightened bitterness, we postulated that the bitterness stemmed from TQ itself. Consequently, we proceeded to analyze both oils, focusing on TQ levels and pH levels.

The results confirmed our initial expectations. The disparity in TQ content and pH levels provided clear evidence that TQ is an acidic substance. This prompted our investigation into the potential risks associated with Thymoquinone and the circumstances under which it could pose a danger.

The pH level analyses showed that generally Black Seed Oil is not acidic enough to be dangerous. The Egyptian BSO has just 5.2 pH which is a green zone and not even close to the point when you need to be worried. The strongest Ethiopian BSO has 3.84 pH which is orange but not red. If we are talking about just 5-10ml a day then it cannot be considered as something to be worried about either. But the dropping number of pH during the number of TQ is clearly shows us that at some point the TQ will be so high that pH will be dropped down lower than 2.0 and at this point the Black Cumin Oil will be considered an essential oil and will be dangerous to use in a pure form.

We will skip mathematical calculations that are not interesting to many, and immediately show the results of these calculations. Our calculations show that Black Seed Oil will be an essential oil if TQ will be higher than 8.5%.


Our research has demonstrated that even the most potent Black Seed Oil derived from Ethiopian Nigella Sativa seeds, containing a TQ percentage of 4.64%, is non-acidic and safe for consumption, particularly when adhering to a maximum daily dose of 10ml. Conversely, any oil with a TQ concentration of 8.5% or higher would classify as a genuine essential oil, posing risks if consumed in its pure form.

At BioNatal LLC, we consistently assert that the Ethiopian Black Seed Oil we offer is the most potent variant worldwide, attributable to the agricultural factors influencing the TQ levels in Nigella seeds, capped at 4.64%. There are no Nigella Sativa seed oils with dangerously elevated TQ levels. The oil we provide is derived solely from the seeds and not from the essential oil extracted from the Nigella Sativa flower petals. We firmly believe that divine design ensures the absence of any erroneous TQ levels in our vegetable oil.