Too soon to tell if the are benefits in using black seed oil - is only been a week, but no stomach/nausea issues as described in the warning label. My only concern - thus the 4 star rating - is the label clearly states 'store in a cool, dry, dark space'. Package was delivered on a hot day and the capsules were still warm several hours after receiving the shipment. It was not left outside, and was immediately brought in when delivered. Best to purchase in the store if you are concerned about overheating.