Nutraceutical firm Irwin Naturals Inc. (CSE: IWIN) (OTC: IWINF) (FRA: 97X) is still struggling to achieve profitability, despite selling off underperforming ketamine clinics while still developing its international cannabis industry footprint, the company reported in its third-quarter financials. Irwin posted a $1.9 million loss for the quarter that ended Sept. …