This site specifically recommends taking the capsule after a meal — worth understanding why, given the direct side-effect disclosure elsewhere on the site.
Take one capsule daily with water, preferably after a meal, per this site's own directions — a specific timing choice connected directly to reducing the chance of mild nausea some users report on an empty stomach.
Since this site names empty-stomach nausea as a specific, if uncommon, side effect, worth following the after-a-meal guidance as written rather than taking the capsule first thing before eating.