For nearly thirty years my family and I have been using cold pressed black seed oil. Although we often forget to take our dose every day, we definitely whip it out the first sign of a cold. My daughters like to crush the whole seeds and eat them in a spoon of our Shea Terra Farm honey. Black seed oil was the first product that I offered when I began my herbal company in 1999/ 2000. Combing through scientific research available at the time, Egyptian black seed oil was reported to be the most active, and I have been promoting Egyptian black seed oil ever since. To learn more about why I recommend adding black seed oil to your daily diet kindly peruse the articles published in the U.S. National Library of Medicine National Institutes of Health. 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3551137/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3642442/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4077235/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4789020/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4883276/