Dear Customer,
We are sorry to hear that you do not tolerate Sulforaphane.
Our Broccoli extract comes from the best source available in the World.
It is produced in France, and the ingredient we use is exactly the same ingredient that has been tested by Johns Hopkins University in children as reported here https://www.youtube.com/watch?v=5xaDLQi0uX4 as well as tested in clinical setting, in prostate cancer patients under the brand name Prostaphane https://aacrjournals.org/cancerpreventionresearch/article/8/8/712/50472/Effect-of-Sulforaphane-in-Men-with-Biochemical
Based on the clinical trial above and customer feedback, we are not aware of side effects from Sulforaphane such as headache and nausea. However, it is known that if taken on an empty stomach, it can cause stomach bloating (see also the clinical trial reports), and this is why we recommend taking it with food.
Nevertheless, if you do not feel well taking it, and you have already taken the capsules with food, we recommend removing part of the powder from the capsule in order to ingest a lower Sulforaphane dose at once, and if you can still not tolerate it, we recommend stopping it.
While our Broccoli Ultra provides the highest amount of Sulforaphane available in the capsule, there are other Broccoli extract products available as supplements in the market that you can test, but most of them come with a much lower level of Sulforaphanne (at a similar price level) as described here https://www.broq.life/pages/compare
We hope this helps.
Kind regards,
The MCS Formulas Team